Minerals, Rocks, Photography, and more, of Bills interests.

Over the years, I have picked up quite a number of mineral and rock specimens. a good number of which have been picked up on Geology Club field trips. The specimens are housed in my back garden in a large container, In an ongoing process, many of the specimens I have photographed so far are listed on this site. Although I am not an expert, but an enthusiastic amateur, I do try and give accurate information about each specimen to the best of my ability. I have photographed all the specimens with an included scale bar The minerals and rocks on the home page are in alphabetical order, with rocks following on from the minerals. Information on a particular mineral or rock can be quickly located, using the AtoZ listing. Minerals and rocks from the Central Wales Orefield are identified as ( CWO ). I would appreciate feedback on my postings, and thanks for looking.

I have been a keen photographer for many years. For most of the years I have displayed my photographs A3+ size in a display board adjacent to the pavement by my front gate. Each photograph is numbered and titled and headed BILLS PICTURE OF THE WEEK All of the photographs on this site have been displayed on the board. The photographs have been taken solely for pleasure, and before this website, only seen by casual passers by..

I have other interests, a few of which are mentioned on this website, For instance, I have always been interested in old engravings and illustrations, some of which I have photographed and put on the site. It would be impossible to show every item of philatelic interest, so I am showing a few random facets which will be familiar to fellow philatelists. I am an engineer by trade, so I have shown the progress of restoration of a 1933 velocette. I may show some other projects later on.

Please note that some of the photographs are poor quality, especially in the prints and glass sections.This because they were originally intended for cataloguing purposes only. The poor photographs will be gradually replaced.

Minerals

Actinolite with sphalerite

This specimen from South Wales, Australia is composed of actinolite and sphalerite with actinolite as the main component...

Actinolite, Selavastn.

Actinolite is a highly complex silicate, asbestos mineral with a formula too complicated for this short note...

Agate geode, Dulcote hill.

This is a rather unusual specimen that has two major components, silica SiO2 and calcite CaCO3 It obviously started life as a silica geode...

Agate, seam agate.

Agate is a variety of chalcedony, and is a silicon dioxide mineral SiO2 This polished specimen has been named as seam agate...

Agate, tree agate.

Tree agate is a form of chalcedony, which is microcrystalline quartz. SiO2. It's proper name is dendritic quartz, or dendritic agate...

Analcime, Croft quarry.

Analcime, Na(AlSi2O6) . H20 is a tectosilicate and classed as a zeolite. The specimen is from Croft quarry in Leicestershire...

Ankerite/Ferroan dolomite, Eaglebrook mine.

Ankerite, Calcium, iron, magnesium, manganese, carbonate, Ca(Fe,Mg,Mn)(CO3)2. Eaglebrook mine, west Wales. Although I have listed this specimen as ankerite, it may well be Ferroan dolomite.

Anthophylite, Czech republic.

Anthophylite, Mg2Mg5Si8O22(OH)2 is an amphibole mineral, and classed as an asbestos. In this specimen which is a concretion, a grey fibrous aggregate of anthophylite is surrounding a nodule of phlogopite mica.

Antigorite, serpentine var.

This specimen, known as "precious serpentine" is a sub-species of antigorite, which in turn is one of several minerals in the serpentine family.

Aragonite, Morocco.

Aragonite, calcium carbonate, CaCO3 has the same chemical composition as calcite, and vaterite. These three minerals are polymorphs of calcium carbonate, each with a different crystal lattice,

Aragonite, Speeton

Aragonite, CaCO3 is a high pressure polymorph of Calcium carbonate. It is metastable near the earths surface, and will eventually decompose to the form of calcite.

Aragonite.

Aragonite is calcium carbonate, Ca CO3. It has the same formula as calcite and vaterite, but has a different crystal lattice.

Arsenopyrite. Hingston Down quarry.

Arsenopyrite is an iron arsenic sulphide FeAsS. With a content of 40 to 45% arsenic,

Astrophyllite, Kola peninsula.

Astrophyllite is a highly complex mineral, a hydrous, potassium, iron, titanium, silicate. with a very complicated formula

Astrophyllite.

Astrophyllite is a rare mineral. It is a potassium iron silicate with a very complicated formula

Australian agates.

These agates were collected in the Coober Pedy area of Australia by the clubs co-founder Jim Nicholls. Coober Pedy is famous for the opals found there, but it seems that there is also a wide variety of agate.

Azurite, Burra Burra.

Azurite, Cu3(CO3)2(OH)2 is a copper carbonate often found in association with malachite, which is chemically similar.

Baryte from Sardinia.

Baryte is barium sulphide BaSO4 This a small specimen from Sardinia, perhaps not the best quality, but

Baryte on calcite. Isle of Sheppey.

Baryte, BaSO4 Barium, sulphate. Specimens such as this one are very distinctive, and easily recognisable as coming from the Isle of Sheppey.

Baryte vugh 1, Bryntail. (CWO)

Baryte, Barium sulphate, BaSO4. Bryntail mine, Nr. Llanidloes, Central Wales Orefield. Pinkish, platey crystals of baryte lining a vugh in

Baryte vugh 2, Bryntail. (CWO)

Baryte, Barium sulphate, BaSO4. Bryntail mine, Nr.Llanidloes, Central Wales Orefield. Pinkish, platey crystals of baryte lining a vugh in a

Baryte, Bryntail mine. (CWO)

Baryte, Barium sulphate, BaSO4. Bryntail mine, Central Wales Orefield. One half of a baryte nodule, broken

Baryte, Bryntail. (CWO)

Baryte, Barium sulphate, BaSO4. Bryntail mine, Central Wales Orefield. A solid mass of intergrown bladed crystals.

Baryte, Bryntail. (CWO)

Baryte, Barium sulphate, BaSO4. Bryntail mine, Nr Llanidloes, Central Wales Orefield. A few specimens recovered from

Baryte, Gorn mine. (CWO)

Baryte, Barium sulphate, BaSO4. Gorn mine, Nr Llanidloes, Central Wales Orefield. These specimens were

Baryte, Gorn mine. (CWO)

Baryte,Barium sulphate, BaSO4, Gorn mine, Nr. Llanidloes, Central Wales Orefield.

Baryte, origin unknown.

Baryte is barium sulphate, BaSO4 baryte crystals can be of several different forms, tabular, massive, nodular, fibrous, or radiating. I am not keen on collecting specimens from unknown locations, but this

Baryte, Pen y Clun. (CWO)

Baryte, Barium sulphate, BaSO4. Pen y Clun mine, Central Wales Orefield. Cream coloured massive baryte

Baryte, Shelve

Baryte, BaSO4, Barium sulphide, is a common gangue mineral associated with lead ore deposits, and this applies

Baryte,Bryntail. (CWO)

Baryte, Barium sulphate, BaSO4. Bryntail mine, Nr Llanidloes, Central Wales Orefield.

Bauxite, Garrone, France.

Temporarily listed in the mineral collection, Bauxite is actually a rock that is the main ore of aluminium.It is composed of

Beryl. Olary, Australia.

Beryl is a beryllium aluminium cyclosilicate with a formula of Be3Al2Si6O18 The best known varieties of beryl are emerald, aquamarine, and morganite ( pink beryl ) I

Biotite mica. Cornwall.

Biotite is classified as a mineral, but is actually a common group of phyllosilicate minerals with the approximate formula of K(Mg,Fe)3AlSi3O10(F,OH)2

Blue John,(Fluorite). Treak Cliff cavern,

Blue john is a variety of fluorite, CaF2 Calcium fluoride. The type locality for this mineral is Castleton in Derbyshire, and this

Bornite.

Bornite often has an iridescent surface, and for this reason is popularly known as "Peacock ore" It is a sulphide mineral, composed of

Brochantite, Australia.

Brochantite is a sulphate mineral, Cu4SO4(OH)6, often referred to as a secondary mineral of copper.

Brochantite, Geufron. (CWO)

Brochantite, a cupric sulphate mineral,Cu4SO4(OH)6. Geufron mine, Central Wales Orefield.

Brochantite, Great Orme.

Brochantite, Cu4(SO4)(OH)6 is a copper sulphate hydroxide mineral which forms in the oxidising zones of copper deposits.

Calcite (dogtooth). Chihuahua,Mexico.

Calcite, CaCO3 This specimen of "dogtooth "calcite is from the Santa Eulalia mining district, Chihuahua, Mexico.

Calcite ( precipitated ), Ystrad Meurig.

Calcite, CaCO3 Calcium carbonate in precipitated form. A little bit of a novelty in my collection, this specimen was first collected in liquid form,

Calcite and Quartz, Nantiera. (CWO)

Calcite, CaCO3, and Quartz, SiO2. Nantiera mine, Central Wales Orefield. The specimens are predominately calcite

Calcite cleavage planes, Tankerville.

Calcite, calcium carbonate, CaCO3 Although of little interest, this specimen is included in the collection, simply

Calcite cleavage, Nantiago mine. (CWO)

Calcite, CaCO3. Nantiago mine, Central Wales Orefield. A wedge of calcite displaying cleavage

Calcite dripstone,Siglenlas. (CWO)

Siglenlas mine, Central Wales Orefield. A delicate construction of precipitated calcite coating a piece of host rock,

Calcite flat-bladed crystals 1, Nantiago. (CWO)

Calcite, Calcium carbonate, CaCO3. Nantiago mine, Central Wales Orefield. The bulk of this specimen is massive calcite.

Calcite flat-bladed crystals 2, Nantiago. (CWO)

Calcite, Calcium carbonate, CaCO3. Nantiago mine, Central Wales Orefield. The uncommonly flat bladed crystals of calcite

Calcite geode, Bridgenorth.

Calcite, calcium carbonate, CaCO3 I discovered this unusual geode in an excavation for industrial buildings in Bridgenorth,

Calcite rhombohedral crystals, Nantiago. (CWO)

alcite, calcium carbonate, CaCO3. Nantiago mine, Central Wales Orefield. This particular specimen

Calcite rhombs, Nantiago. (CWO)

Calcite, Calcium carbonate, CaCO3. Nantiago mine, Central Wales Orefield.

Calcite vhug, Blaengwynlais.

Calcite is calcium Carbonate, CaCO3 and is widespread throughout Wales. Some of the best crystals are from limestone quarries in South Wales.

Calcite, Colemans quarry.

Calcite, calcium carbonate, CaCO3 This simple specimen is part of a larger druse of scalenahedral crystals on a limestone base.

Calcite, Cregiau quarry.

Calcite, calcium carbonate, CaCO3. This is one of several specimens collected from Cregiau quarry,

Calcite, Creigiau quarry.

Calcite, calcium carbonate, CaCO3. Two more specimens of calcite from Creigiau quarry, South Wales.

Calcite, Dylife. (CWO)

Calcite, Calcium carbonate, CaCO3. Dylife mine, Nr. Staylittle,

Calcite, Llanfawr quarry.

Calcite, Calcium carbonate, CaCO3. Llanfawr quarry, Llandrindod Wells. From a fault in the quarry this specimen

Calcite, massive, Snailbeach.

Calcite, CaCO3 calcium carbonate. There is nothing remarkable about this specimen.

Calcite, nailhead var. NSW, Australia.

Calcite, Calcium carbonate , CaCO3 Calcite is a very common mineral, found in nearly all geologic environments.

Calcite, Origin unknown.

Calcite, CaO3, Calcium carbonate. Calcite can be so varied in appearance

Calcite, spherical.

Galcte, calcium carbonate, CaCO3. These spheres of calcite in a basalt cavity,

Calcite, St Austell.

Calcite, calcium carbonate, CaCO3. Calcite comes in so many forms, that most specimens have an appearance

Calcite, Taff's Well.

Calcite, calcium carbonate, CaCO3. Another specimen of calcite collected many years ago,

Calcite, Taffs Well.

Calcite, Calcium carbonate, CaCO3 This specimen is one of many collected from Taffs Well quarry,

Calcite, Ton Mawr.

Calcite, Calcium carbonate, CaCO3. This specimen is a fine cluster of creamy nailhead crystals on a limestone matrix.

Calcite, Ton Mawr.

Another example of calcite crystals, again from one of the limestone quarries of South Wales.

Calcite, twinned scalenahedral crystals, Creigau quarry.

Calcite, calcuium carbonate, CaCO3. Creigau quarry,

Calcite, two specimens, Nantiago. (CWO)

Calcite, Calcium carbonate, CaCO3. Nantiago mine, Central Wales

Calcite, Whately quarry.

Calcite, CaCO3 Calcium carbonate. This specimen is from Whately quarry near Wells in Somerset.

Calcite. Blaengwynlais quarry.

Calcite, CaCO3 Calcium carbonate. There is nothing very special about this specimen,

Calcite. Rorington.

Calcite, CaCO3, Calcium carbonate is a mineral that is very common

Calcite. Ton Mawr quarry.

Calcite, calcium carbonate, CaCO3 This specimen was collected from Ton Mawr limestone quarry,

Calcite. Tonfanau.

Calcite, Calcium carbonate, CaCO3 The club had a field trip to the coastal exposures at the small village of Tonfanau,

Calcite/Galena, Madan,Bulgaria.

This is a pretty little specimen of Calcite CaO3 and galena PbS both of which are common hydrothermal minerals.

Carborundum

I offer no apology for including carborundum in my collection. I saw the specimen on a market stall amidst the bric a brac priced at £10,

Celestine, (Celestite), Erfoud.

Celestine, SrSO4 is strontium sulphate. Celestine is derived from the Latin word for celestial,

Chalcedony, erratic.

Chalcedony. is a microcrystalline form of silica, SiO2. The silica is in two forms, quartz, and moganite, both of which have the same formula, but different crystal structures.

Chalcedony, Normandy.

Chalcedony, SiO2 is a cryptocrystalline mineral formed from the intergrowth of two silica minerals, quartz and moganite.

Chalcedony, Sahara desert.

This chalcedony geode is composed of cryptocrystalline quartz and moganite,

Chalcopyrite, Dylife. (CWO)

Chalcopyrite, Copper iron sulphide, CuFeS2. Dylife mine spoil heaps, Nr. Staylittle, Central Wales Orefield.

Chalcopyrite, Geufron. (CWO)

Chalcopyrite,Copper,iron sulphide.CuFeS2. Geufron mine, Central Wales Orefield. A nugget

Chalcopyrite, Kellingly mine.

Chalcopyrite, CuFeS2 is a copper iron sulphide mineral. It is the most important ore of copper,

Chalcopyrite,Siglenlas. (CWO)

Chalcopyrite, CeFeS2. Siglenlas mine, Nr. Llanidloes, Central Wales Orefield.

Chrysocolla 1, Geufron. (CWO)

Chrysocolla, ia a hydrated copper phylosilicate mineral found in the weathering zones of copper deposits.Geufron mine,

Chrysocolla 2, Geufron. (CWO)

Detail enlargement from chrysocolla 1. The globular nature of some of the encrustation is more apparent.

Chrysocolla, Hafod Feddgar. (CWO)

Chrysocolla is a hydrated copper phyllosilicate mineral which can occur in the oxidation zone of copper ore deposits.

Collectors Paradise.

There are so many minerals coming from Broken Hill in Australia

Copper staining, Hafod Feddgar. (CWO)

Hafod Feddgar mine, Central Wales Orefield. The mine, having been closed for about 100 years,

Damourite mica. Adelaide hills.

Damourite mica is a very fine grained variety of muscovite mica. KAl2(AlSi3O10)(OH)2 , and is described as an alteration mineral.

Dolomite / Quartz, Penstrowed, Newtown.

Dolomite, CaMg(CO3)2 , and Quartz, SiO2, are featured in this rock from Penstrowed quarry, Newtown, .

Dolomite / Quartz,Tan y Foel quarry.

Dolomite, CaMg(CO3)2. Tan y Foel quarry, Cefn Coch, Nr Welshpool, central Wales.

Dolomite, Bryntail. (CWO)

Dolomite,CaMg(CO3)2. Bryntail mine, Central Wales Orefield. It is unusual to find such a well formed specimen of dolomite in the Central Wales Orefield.

Dolomite, Sligo,Ireland.

Dolomite. CaMg(CO3)2 is an anhydrous carbonate mineral, sometimes referred to as dolostone.

Epidote.

Epidote is a calcium aluminium iron sorosilicate mineral, with the formula Ca2Al2(Fe3+;Al)(SiO4)(Si2O7)O(OH).

Ferroan Dolomite,Dylife. (CWO)

Ferroan dolomite is a nebulous term that is applied to dolomite that has an iron content. Dylife mine,

Ferroan dolomite. Central Wales.

Ferroan dolomite is a way of describing dolomite which has an iron content, which imparts a rusty brown colour.

Flint.

Flint, sometimes referred to as chert by geologists, is a cryptocrystalline form of quartz, SiO2

Fluorite, Alston moor.

Fluorite, CaF2 , also called fluorspar is calcium fluoride. The specimen is from Smallcleugh mine, Alston moor,

Fluorite, Weardale.

Fluorite, CaF2, is also known as fluorspar. This calcium fluoride mineral belongs to the halide family,

Fluorite. Egremont.

Fluorite is calcium fluoride, CaF2 It may be called fluorspar, and is a halide mineral.

Fluorite. Mina Moscona Solis, Spain.

Fluorite, CaF2 is calcium fluoride and is a halide mineral. In it's pure state it is colourless,

Fuchsite (Chrome mica)

Fuchsite, also referred to as chrome mica has the chemical formula KAl2(Si3Al)O10(OH)2

Fulgarite, Silica var.

This specimen is a fulgarite, which has been created by the action of lightning.

Galena and Quartz, Nantiera. (CWO)

Galena, PbS, and Quartz, SiO2. Nantiera mine, Central Wales Orefield.

Galena on Quartz, Dylife. (CWO)

Galena, PbS, and Quartz, SiO2. Dylife mine, Nr. Staylittle, Central Wales Orefield.

Galena with quartz, Aberdaunant. (CWO)

Galena, PbS, and Quartz, SiO2. Aberdaunant mine, Nr. Llanidloes, Central Wales Orefield.

Galena, Eaglebrook. (CWO)

Galena, PbS, Lead sulphide. Eaglebrook ( Nantycagl ) mine, Nant-y-moch reservoir west Wales.

Galena, Eyam.

Galena, lead sulfide, PbS The irregular boundary of the galena is probably because

Galena, Pen Dylife. (CWO)

Galena, PbS. Pen Dylife mine, Nr Staylittle, west Wales. Thin deposits

Galena, Pen y Gaer hill, Llanidloes. (CWO)

Galena, Lead sulphide, PbS. Pen y Gaer hill, Llanidloes,

Garnet with Muscovite mica, Evje.

The two main components of this specimen are almandine garnet, and muscovite mica.

Goethite on Pyrite, Aberdaunant. (CWO)

Goethite, Iron oxyhydroxide, FeO(OH). and Pyrite, FeS2 Aberdaunant mine, Central Wales Orefield.

Goethite, Aberdaunant. (CWO)

Goethite, FeO(OH). Aberdaunant mine, Central Wales Orefield. Two, very thin deposits of goethite

Goethite, Aberdaunant. (CWO)

Goethite, Iron oxyhydroxide, FeO(OH). and Pyrite, FeS2 Aberdaunant mine, Central Wales Orefield.

Goethite, Ton Mawr.

Goethite is an iron bearing hydroxide mineral. a- FeO ( OH ). This specimen has a vugh of acicular goethite

Goethite. Cornwall.

Goethite is hydrated iron oxide, (FeO(OH)). It is often formed from the breakdown of other iron minerals,

Goethite/Haematite, Merehead quarry.

Goethite, a-FeO(OH) and haematite, Fe2O3 are both iron minerals, and are quite difficult to identify from colour alone,

Grossular ( garnet ), Grova.

Grossular, Ca3Al2(SiO4)3 is a calcium-aluminium species of the garnet group.

Gypsum, Lubin,Poland.

Gypsum, Calcium sulphate dihydrate, CaSO4 . 2H2O is an evaporite mineral. The variety of this specimen is known as selenite,

Gypsum, S.Australia.

Gypsum, Calcium sulphate dihydrate, CaSO4 . 2H2O As described in other gypsum references,

Gypsum, altered.

Gypsum (CaSO4.2H2O) calcium sulfate dihydrate is an evaporite mineral which can ocurr in many different colours, and crystal habits.

Gypsum, Blue anchor bay.

Gypsum is an evaporite mineral with the formula CaSO4 . 2H2O , calcium sulphate dihydrate.

Gypsum, Crete.

Gypsum, CaSO4 . 2H2O calcium sulphate dihydrate, is an evaporite mineral.

Gypsum, Desert rose var.

Gypsum, CaSO. 4· 2H2O is an evaporite mineral. It is precipitated from mineral rich bodies of water,

Gypsum, Desert rose, Morocco.

Gypsum is calcium sulphate dihydrate, CaSO4 . 2H2O This variety of rosette crystal habit is commonly referred to as a "desert rose".

Gypsum, Nottingham.

Gypsum, CaSO4 . 2H2O is an evaporite mineral, commonly found in layered sedimentary rocks.

Gypsum, satin spar var.

Gypsum, CaSO4 . 2H2O Calcium sulfate dihydrate. is an evaporate mineral

Gypsum, satin spar var. Penarth.

Gypsum, CaSO4 . 2H2O Calcium sulphate dihydrate, is an evaporite mineral,

Gypsum, sedimentary, Penarth.

These specimens of gypsum, CaSO4 . 2H2O were collected on the same day. Both had eroded from the cliff face on Penarth beach,

Gypsum, selenite var. South Australia.

Gypsum, CaSO4 . 2H2O is an evaporite mineral. This selenite variety specimen

Gypsum, selenite var. Essone France

Gypsum, calcium sulfate dihydrate, CaSO4 . 2H2O This specimen from Essone in France is referred to as selenite.

Haematite, Aberdaunant. (CWO)

Haematite(Hematite),Iron oxide, FeO2. Aberdaunant mine, Central Wales Orefield.

Haematite, Bamfylde mine.

Haematite, Fe2O3, Iron oxide, This specimen, because of it's silvery appearance,

Haematite, Dylife. (CWO)

Haematite(Hematite), Iron oxide, Fe2O3, Dylife mine, Nr. Staylittle, Central Wales Orefield.

Haematite, Frizington.

Haematite is an iron oxide, Fe2O3 This specimen is botryoidal in habit,

Haematite, Marine colliery.

Haematite nodule, Fe2O3 iron oxide. with siderite and quartz.

Haematite, Marine colliery.

Hematite, Fe2O3 iron oxide, with siderite, FeCO3 iron carbonate. The haematite in this specimen is in the form

Haematite, Ton Mawr quarry.

Hematite, Fe2O3 is iron oxide, and the main ore of iron. The location of this specimen is Ton Mawr quarry, Taffs Well,

Haematite,Forest of Dean

Haematite, Fe2O3, iron oxide, and the main ore of iron. These specimens were collected from Mine Train quarry

Halite, Rock salt. Cheshire.

Halite, or rock salt is sodium chloride (NaCl).This is an evaporite mineral

Hematite. Kidney ore var. Morocco.

Hematite, Iron oxide, Fe2O3 is the most important ore of iron.

Hemimorphite 1, Henfwlch. (CWO)

Hemimorphite, Zn4(SiO7)(OH2).H2O. Henfwlch mine, west Wales. The beauty of the hemimorphite

Hemimorphite 2, Henfwlch. (CWO)

Hemimorphite, Zn4(Si2O7(OH)2.H2), Henfwlch mine, West Wales.

Hemimorphite.

Hemimorphite is a sorosilicate mineral with the formula Zn4Si2O7(OH)2-H2O

Hydraulic brecciation, Bryn y Rafr. (CWO)

Bryn y Rafr mine, West Wales. Typical brecciated material from this site,

Hydraulic brecciation, Cafartha, Staylittle. (CWO)

Cafartha mine, Staylittle, Central Wales Orefield. This pretty little specimen is a mix of

Hydraulic brecciation, Castell mine. (CWO)

Castell mine, west Wales. This fine example of hydraulic brecciation is made up of host rock, quartz, and

Hydrothermal Breccia.

This specimen of breccia is from Henfwlch mine, Nant y Moch reservoir,

Hydrozincite, Pencurig mine. (CWO)

Hydrozincite, Zinc bloom, Marionite, Zn5(CO3)2(OH)6. Pencurig mine, Dylife, Central Wales Orefield.

Inesite, Kuruman, S. Africa.

Inesite, is a complex inosilicate mineral, with a formula Ca2(Mn,Fe)7Si10O28(OH)2 · 5H2O

Jasper, Leopardskin Variety. Spain.

Jasper, SiO2, Silicon dioxide. is an aggregate of chalcedony and microgranular quartz,

Jasper, Mookaite var.

Mookaite is a local name attributed to this jasper, SiO2. It is so named because it is from

Jasper, Mookaite var. Mooka station.

Jasper, Mookaite var. SiO2 , is not a mineral as such, but is a rock. It is formed as a sedimentary rock

Jasper, Tiger iron var.

Tiger iron jasper is a gemstone variety of jasper. It is a member of the quartz group, SiO2

Jet ( Whitby Jet ).

Jet is not a mineral. It does not have a crystalline structure,

Labradorite, Larvic,Norway.

Labradorite, ((Ca,Na)(Al,Si)4O8 is a feldspar mineral and is an intermediate to calcic member of the plagioclase feldspar series.

Lepidolite. Brazil.

Lepidolite, Na(AlSi3O8). Simplified formula, is a member of the mica family.

Limestone,Landscape marble, Cotham.

Limestone, carbonate rock, Cotham marble var. This is a specimen that should not be in my mineral collection. I

Linarite and Malachite, Geufron. (CWO)

Linarite,copper lead sulphide, PbCuSO4(OH)2 and Malachite, copper carbonate, Cu2CO3(OH)2.

Magnesite (Citron chrysoprase). Australia.

Magnesite, MgCO3, is a magnesium carbonate. The marketing name of citron chrysoprase

Malachite with Chrysocolla.

Malachite is a copper carbonate hydroxide with a formula of Cu2CO3(OH)2.

Malachite, Katanga prov. Congo.

Malachite is a copper carbonate mineral with the formula Cu2CO3(OH)2 and is formed from the weathering

Malachite, Brazil.

Malachite is a copper carbonate mineral with the formula Cu2CO3(OH)2

Malachite. Shaba province, Congo.

Malachite is a copper carbonate mineral, Cu2CO3(OH)2 which forms as the result of weathering

Manganese ore. South Africa.

Manganese ore can be quite complex in composition, however the known location and origin

Manganese oxide, Llanymynech.

Manganese oxide, MnO2, dendritic variety. The specimen was collected from

Marcasite / Quartz, Bryn y Rafr. (CWO)

Marcasite, FeS2, and Quartz, SiO2, Bryn y Rafr mine, west Wales. This brecciated rock

Marcasite / Quartz, Bryn y Rafr. (CWO)

Marcasite,FeS2, and Quartz,SiO2. Bryn y Rafr mine, west Wales.

Marcasite and Quartz, Bryn y Rafra. (CWO)

Marcasite FeS2, and Quartz, SiO2. Bryn y Rafr mine, west Wales.

Marcasite, Bry y Rafr. (CWO)

Marcaste, FeS2. Bryn y Rafr mine, West Wales. Two halves of a broken specimen.

Marcasite, Quartz, breccia.

This specimen is from Bryn y Rafr mine, on the shore of Nant y Moch reservoir, west Wales.

Marcasite/Quartz, Bryn y Rafr. (CWO)

Marcasite, FeS2, and Quartz, SiO2. Bryn y Rafr mine, west Wales.

Microcline, Argentina.

Microcline feldspar has the formula of KAlSi3O8, and is sometimes referred to as

Millerite, Marine colliery.

Millerite is nickel sulphide, NiS. The specimen is from waste heaps at Marine colliery,

Mineral assemblage on host rock, Aberdaunant. (CWO)

Aberdaunant mine, Central Wales Orefield. A deposition of different minerals on two faces of host rock.

Molybdenite.

Molebdynite is molybdenum disulfide, MoS2 It was at one time thought to be lead,

Muscovite. Liskeard.

Muscovite is the most common form of mica. It is known as insinglass, potash mica,

Natrolite.

Natrolite is a tectosilicate mineral, in the zeolite group. It is a hydrated sodium and aluminium silicate

Obsidian (Apache tear), Superior, Colorado.

Obsidian is a volcanic glass classed as a mineraloid, and is composed of approximately 70 % Silica, SiO2,

Obsidian. Mexico.

Very often referred to as "volcanic glass" Obsidian is neither a rock or a mineral.

Okenite, Origin unknown.

Okenite, CaSi2O . 5 . 2H2O ( simplistic formula ) is a silicate mineral often found together with zeolites

Okenite, Poona,India.

Okenite, CaSi2O . 5 . 2H2O ( simplistic formula ) is a silicate mineral often found together with zeolites

Opal, Andamooka.

Opal, SiO2 . nH2O is a hydrated amorphous form of silica,

Opal, Madagascar.

Opal, SiO2 . nH2O is not a mineral, because it has a water content, and so it is classed as a mineraloid,

Opal, Norsman opal mine,Australia.

Opal, common Opal. SiO2 . nH2O. Opal is a hydrated amorphous form of silica,

Orbicular Rhyolite. Chihuahua,Mexico.

In highly silicified deposits of rhyolitic tuff, quartz and feldspar crystallise in a manner

Petrified wood.

This specimen of petrified wood, more commonly called fossil wood, or wood opal. is made of almost pure silica,

Picrolite, serpentine var.

Picrolite is a sepentine mineral. It is a variety of antigorite,

Prehnite, after laumonite.

Prehnite is an inosilicate of calcium and aluminium with the formula Ca2AlSi3O12(OH)

Prehnite, Loanhead quarry.

Prehnite is an inosilicate with the formula Ca2Al(AlSi3O10)(OH)2

Pyrite on Dolomite, Tan y Foel quarry.

Pyrite, FeS2, and Dolomite, CaMg(CO3)2. Tan y Foel quarry, Nr Adfa. central Wales.

Pyrite, Navajun,Spain.

This beautiful crystal of pyrite, FeS2 is from a locality renowned for an abundance of such specimens.

Pyrite, Unknown origin.

Pyrite, FeS2 an iron sulphide, is the most common sulphide mineral.

Pyrite. Venezuela.

Pyrite, FeS2, Iron sulphide. There is not a lot to say about this familiar mineral,

Pyromorphite, Aberdaunant. (CWO)

Pyromorphite, a secondary mineral of lead, Pb5(PO4)5CL. Aberdaunant mine, Central Wales Orefield.

Pyromorphite, Aberdaunant. (CWO)

Pyromorphite, a secondary mineral of lead, Bb5(PO4)3Cl. Aberdaunant mine, Central Wales Orefield.

Pyromorphite, Caldbeck.

Pyromorphite, Pb5(PO4)3Cl is lead chloride phosphate. One of the secondary lead minerals

Pyromorphite, Driggeth.

Pyromorphite, Pb5(PO4)3Cl is lead chloride phosphate, a secondary lead mineral

Pyromorphite,Bwlch Glas.

Pyromorphite, Pb5(PO4)3Cl. Bwlch Glas mine, Nr. Talybont, West Wales.

Pyromorphite. Cumbria.

Pyromorphite, Pb5(PO4)3Cl is a secondary mineral of lead sulphide, Pb5

Pyrophyllite, California.

Pyrophyllite is a phyllosilicate mineral, Al2Si4O10(OH)2 Aluminium silicate hydroxide.

Quartz (Milky),Ystrad Meurig.

Quartx, SiO2, Ystrad Meurig quarry, Ysbyty Ystwyth, West Wales.

Quartz ( Druzy ), Bryn y Rafr. (CWO)

Quartz, SiO2. Bryn y Rafr mine, Central Wales Orefield. A specimen composed of druzy quartz,

Quartz ( Eisenkiesel var. ). Pendeen.

Eisenkiesel is a German term which translates to iron quartz, or ferruginous quartz.

Quartz ( var. floater ). Huanuco,Peru.

These crystals of quartz, SiO2 are in a formation known as floaters,

Quartz (druzy) and Calcite 1,Dylife. (CWO)

Quartz, SiO2, and Calcite, CaCO3. Dylife mine, Central Wales Orefield. Clear druzy quartz crystals

Quartz (druzy) and Calcite 2 (CWO)

Dylife mine, Central Wales Orefield. Detail from druzy quartz and calcite 1.

Quartz (Druzy), Van mine. (CWO)

Druzy quartz, SiO2. Van mine, Central Wales Orefield. Clusters of small,

Quartz crystals,Llawr Y Glyn.

Quartz, SiO2. Llawr y Glyn, Nr. Staylittle, central Wales. This unremarkable specimen

Quartz crystals,Van mine. (CWO)

Quartz, SiO2. Van mine, Central Wales Orefield. These specimens were picked up many years ago,

Quartz geode.

Quartz, silicon dioxide, SiO2 is the most abundant mineral in the earth's surface.

Quartz in brecciated rock, Bryn y Rafr. (CWO)

Quartz, SiO2. Bryn Y Rafr mine, west Wales. Common in hydrothermal ore deposits,

Quartz miscellaneous, Bryn y Rafr. (CWO)

Quartz, SiO2. Bryn y Rafr mine, west Wales. The two smaller specimens are skeletal in appearance,

Quartz var. Falcons eye. New zealand.

Falcons eye quartz is a blue variety of Tigers eye quartz.

Quartz var. Tigers eye. New zealand

Tigers eye variety of quartz, SiO2 is formed from by the parallel intergrowth of quartz

Quartz, ( Druzy), Eaglebrook.

Quartz, SiO2, Eaglebrook mine, west Wales. A fine example of druzy quartz.

Quartz, (Druzy), Bryn y Rafr. (CWO)

Quartz, SiO2. Bryn y Rafr mine, Central Wales Orefield. A specimen composed of druzy quartz,

Quartz, Aberdaunant. (CWO)

Quartz, SiO2. Aberdaunant mine, Nr. Llanidloes, Central Wales Orefield.

Quartz, Amethyst var.

Quartz, silicon dioxide, SiO2 has many varieties, dependent on conditions in which it is formed,

Quartz, Amethyst var.

This specimen of amethyst var. quartz, SiO2 is very unremarkable in appearance,

Quartz, Bryn Y Rafr. (CWO)

Quartz, SiO2. Bryn y Rafr mine, west Wales. The two smaller specimens are skeletal in appearance,

Quartz, Cwn Fron. (CWO)

Quartz, SiO2. Cwm Fron mine, Nr. Tylwych, central Wales.

Quartz, Dylife. (CWO)

Quartz, SiO2, Dyife mine Nr Staylittle,Central Wales Orefield.

Quartz, Haematitic variety, Bryn y Rafr. (CWO)

Quartz, SiO2. Bryn y Rafr mine, west Wales. Very small druzy crystals

Quartz, Haematitic, Aberdaunant. (CWO)

Quartz, SiO2, Aberdaunant mine, Central Wales orefield. Small prismatic crystals in druzy form,

Quartz, Haematitic, Dyfyngwm. (CWO)

Quatrtz, SiO2, Dyfyngwm mine, Nr.Staylittle,Central Wales. Brecciated rock

Quartz, Herkimer diamond ( type ), Marine colliery.

Herkimer diamonds are small doubly terminated quartz crystals. SiO2 and are so named

Quartz, Net veining, Bryn y Rafr. (CWO)

Quartz, SiO2. Bryn y Rafr mine, west Wales. An example of net veining on a small scale.

Quartz, Rose var.

Quartz is silicon dioxide SiO2, one of the most common minerals to be found in the Earths crust. There are many varieties of quartz, ....

Quartz, smoky var. Origin unknown.

Smoky quartz SiO2. silicon dioxide, is quartz which has attained a darkening in colour

Quartz, stressed. Llandinam, Powys.

These specimens of quartz, SiO2 were collected on the top of one of the highest hills in my locality.

Quartz, Tan y Foel.

There are many badly formed prismatic crystals of quartz, SiO2 lining this cavity in sandstone.

Quartz,(Druzy), Bryn Y Rafr. (CWO)

Quartz,SiO2. Bryn y Rafr mine, west Wales. There is nothing unusual or spectacular about this specimen.

Quartz,(Druzy), Cafartha mine. (CWO)

Quartz, SiO2. Cafartha mine, Nr. Staylittle, Central Wales Orefield. This specimen, though small,

Rhodochrosite, Australia.

Rhodochrosite is Manganese carbonate MnCO3. This specimen is the product of brecciation,

Rhodochrosite. Broken Hill,Australia.

Rhodochrosite, MnCO3 is a manganese carbonate mineral, sometimes called mangano calcite.

Rutile, Australia.

Rutile is titanium oxide, TiO2 It is a common accessory mineral in high-temperature and

Rutile, Mt. Painter, Australia.

Rutile, TiO2 is titanium dioxide, and trimorphous with anatase, and brookite.

Rutile. New zealand.

Rutile TiO2 is titanium oxide. The occurrence of rutile crystals enclosed in quartz is not uncommon.

Sapphirine/Anthophyllite

The specimen is composed of two minerals, sapphirine and anthophyllite.

Schorl tourmaline, Norway.

The general formula for tourmaline, which is a group mineral is NaFe2+3Al6(BO3)3Si6O18(OH)4

Schorl tourmaline, Brazil.

Tourmaline is a crystalline boron silicate mineral, with 33 different minerals in the group. The most common mineral is schorl,

Selenite ( Desert rose var. ). Chihuahua.

Selenite, Desert rose var. is one of the four crystal structures of gypsum, with the formula of CaSO4 . 2H2O, calcium sulfate dihydrate.

Serpentine, Cornwall.

Serpentinite is a metamorphic rock which contains one or more of the serpentine group minerals.

Siderite 1, Castell mine.

Siderite, Iron carbonate, FeCO3. Castell mine, West Wales. A concretionary mass of small rhomohedral crystals.

Siderite 2, Castell mine.

Siderite, iron carbonate, FeCO3. Castell mine, West Wales. A small vugh of rhombohedral siderite crystals

Siderite, Lipez, Bolivia

Siderite, FeCO3 is an iron carbonate. It has an iron content

Siderite, Abernaunant. (CWO)

Siderite, Iron carbonate, FeCO3. Aberdaunant mine, Nr. Llanidloes, Central Wales Orefield.

Siderite, Cafartha mine. (CWO)

Siderite, Iron carbonate, FeCO3. Cafartha mine, Nr Staylittle, Central Wales Orefield.

Siderite, Geufron. (CWO)

Siderite, Iron carbonate, FeCO3. This mineral is fairly common throughout the Central Wales orefield.

Siderite, Marine colliery.

Siderite is Iron carbonate FeCO3 This specimen was collected from Marine colliery waste heaps in Ebbw Vale

Siderite, Marine colliery.

Siderite is an iron carbonate. FeCO3 This specimen was collected from a waste heap on the site of the closed Marine colliery

Siderite, Siglenlas mine. (CWO)

Siderite, Iron cabonate, FeCO3. Siglenlas mine, Nr. Llanidloes, Central Wales Orefield.

Siderite, Van mine. (CWO)

Siderite, Iron carbonate, FeCO3. Van mine, Nr. Llanidloes, Central Wales Orefield.

Siderite, Ystrad Meurig.

Siderite, Iron carbonate, FeCO3. Ystrad Meurig quarry, Ysbyty Ystwyth, west Wales.

Sodalite, New zealand.

Sodalite is named because of it's soda content. It is a tectosilicate mineral with the formula Na8 ( Al6 Si6 O24 ) Cl2

Specular Hematite with Fluorite, Egremont.

Both minerals on this specimen are interesting, The specular variety of hematite , Fe2O3 is often referred to by the name specularite.

Sphalerite / Quartz, Bryn y Rafr. (CWO)

Sphalerite, ZnS, and Quartz, SiO2. Bryn y Rafr mine, west Wales. Several layers of sphalerite separated by quartz.

Sphalerite and Siderite, Castell mine. (CWO)

Sphalerite, (Zn,Fe)S. and Siderite, FeCO3. Castell mine, west Wales. The bulk of the specimen is massive siderite

Sphalerite, Cwmbryno.

Sphalerite, Zinc sulphide, (Zn,Fe)S. Cwmbryno mine, west Wales. Sphalerite in brecciated rock.

Sphalerite, Driggeth, Cumbria.

Sphalerite, zinc sulfide,( Zn,Fe)S from the Driggeth mine in Cumbria, is the most common ore of zinc

Sphalerite, Driggeth.

Sphalerite, (Zn,Fe)S, Zinc sulphide, is the main ore of zinc, and is usually associated with galena.

Sphalerite, Dylife mine. (CWO)

Sphalerite, Zinc sulphide, (Zn,Fe)S. Dylife mine, Central Wales Orefield. Brecciated rock from ore deposits,

Sphalerite, Dylife. (CWO)

Sphalerite, Zinc sulphide, ZnS, Dylife mine,Central Wales Orefield. The sphalerite is massive,

Sphalerite, Dylife. (CWO)

Sphalerite, Zinc sulphide, (Zn,Fe)S. Dylife mine, Central Wales Orefield. Sphalerite in massive form with apparent alignment features.

Sphalerite, Galena and Calcite 1, Nantiago. (CWO)

Nantiago mine, Central Wales Orefield. Sphalerite and galena filling crevices in fractured calcite.

Sphalerite, Galena and Calcite 2, Nantiago. (CWO)

Nantiago mine, Central Wales Orefield. This is a detail from sphalerite, galena, and calcite 1.

Sphalerite, Nentsberry Haggs.

Sphalerite. ( Zn,Fe ) S ), Zinc sulphide, with variable iron content. Sphalerite is the main ore of zinc, and sometimes referred to by miners as zinc blende,

Sphalerite, Origin unknown.

Sphalerite is ZnS, Zinc sulphide, a major ore of zinc. The specimens location is unknown,

Sphalerite, Snailbeach.

Sphalerite, (Zn, Fe)S, sometimes called "Black jack" or "Blende", is zinc sulphide, and is the main ore of zinc.

Sphalerite, Snailbeach.

Sphalerite, (Zn, Fe)S, sometimes called "Black jack" or "Blende", is zinc sulphide, and is the main ore of zinc.

Spodumene, Kunzite var., Origin unknown.

Spodumene ( Kunzite var. ) LiAl(SiO3)2 is a pyroxene mineral, lithium aluminium inosilicate.

Stauralite, Russia.

Stauralite, Fe2+2Al9O6(SiO4)4(O,OH)2 is a regional metamorphic neosilicate mineral.

Stilbite with Actinolite, Mt.Painter.

The main component of this specimen is stilbite, ( the orangey mineral ) with some actinolite, ( the dark mineral ) and a minor amount of laumantite.

Stilbite. Isle of Skye.

Stilbite is a tectosilicate mineral of the zeolite group, and is a series name rather than a specific mineral.

Sulphur. ( Sulfur ), Sicily.

Sulphur, S,is a native element that is abundant in the seas and in the Earths crust and even in the human body.

Tourmaline, Colcerrow quarry.

Tourmaline is a crystalline boron silicate mineral. There are several varieties and colours.

Tourmaline, Cornwall.

Tourmaline is a crystalline boron silicate mineral. The specimen is composed of black tourmaline

Tourmaline, rossmanite var.

Tourmaline is a boron silicate mineral, which occurs as an accessory mineral in igneous and metamorphic rocks.

Tourmaline, schorl var.

Tourmaline is a crystalline boron silicate mineral, Na(Li,Al,Mg,Mn,Fe)3Al6(BO3)3 Si6O18(OH)4

Vanadinite, Morocco.

Vanadinite belongs to the apatite group 0f phosphates, and has the formula of Pb5(VO4)3Cl.

Vanadinite, Arizona.

Vanadinite is Pb5(VO4)3Cl, Lead chloro vanadate. belonging to the apatite group of phosphates.

Vanadinite. Unknown origin.

Vanadinite Pb5(VO4)3Cl is a mineral which forms in the oxidation zones of lead deposits,

Vermiculite. Ontario.

Vermiculite is a hydrous phylosilicate mineral, (Mg,Fe2+, Fe3+ )3(Al,Si)4O10 (OH)2 . 4H2O

Vivianite, Ukraine.

Vivianite, Fe2+3(PO4)2 .8H2O is a hydrated iron phosphate mineral.

Witherite, Gorn mine. (CWO)

Witherite, Barium carbonate, BaCO3. Gorn mine, Nr. Llanidloes, Central Wales Orefield.

Woodwardite, Ireland

Woodwardite is a rare Hydrated Copper Sulfate found in weathered deposits at copper mines.

Wulfenite, Origin unknown.

Wulfenite is a secondary mineral of lead and is a lead molybdate with the formula of PbMoO4

Quartz,Unclassified,Pencurig mine (CWO)

Quartz, SiO2. Pencurig mine, Dylife, Central Wales Orefield. These specimens were taken from the wall of an adit.

Rocks

Agglomerate, Ercall quarry.

This specimen of rhyolitic agglomerate was collected fro Forest Glen Quarry car park, at the foot of the Wrekin in Shropshire.

Alternata limestone. Onny valley.

This Ordovician fossiliferous limestone is so named because it is packed with numerous brachiopods Heterorthis alternata, as in the lower inset picture.

Augen gneiss. Easter Ross,Scotland.

Augen gneiss is a medium to coarse grained metamorphic rock composed of mainly quartz and feldspar

Breccia, Hafren forest.

This specimen of breccia was collected about 15 years ago from the Hafren forest car park area, near Llanidloes, Mid Wales.

Chatwell sandstone. Onny valley.

This specimen of Chatwell sandstone was collected on the Onny valley trail, which is on the outskirts of the town of Craven arms,

Concretion - High detail. Mid Wales.

The detail in this cone in cone variety of concretion is outstanding, with high detail in the cross section, and very pronounced cone tops.

Concretion, cone-in-cone var.

Concretions in central Wales are so common that it is almost embarrassing to include them in my rock collection,

Concretion, Dolfor, type one.

Concretions are plentiful in the mudstones of central Wales. Some sites produce distinctive concretions,

Concretion, Trefeglwys.

Concretions are a common occurrence in the Silurian mudstones of central Wales.

Concretion. Trewern,Welshpool.

This concretion has a definite sharp edge around the broadest part, almost as though it is two halves stuck together.

Conglomerate, Ercall quarry.

This specimen was retrieved from Ercall quarry in Shropshire. ( without hammering ).

Coralline crag. Thorpeness,Suffolk.

This specimen of Coralline crag was collected from Thorpeness beach, on the Suffolk coast.

Dolerite ( Diabase ) Criggion ,Welshpool.

Powys is well known for supplying very hard stone, mainly used for road surfacing.

Eclogite, Norway.

Eclogite is an uncommon rock. It typically results from the high pressure metamorphism of mafic...

Flute casts

This specimen shows flute casts on both sides. It is an unusually thin turbidite,

Flysch. Swiss Alps.

This specimen was a gift from Bill Fitches who collected it from the Salanfe valley

Garnet-pyroxene-gneiss.

The pyrope in this specimen, Mg3Al2(SiO4)3 is a member of the garnet group with high Mg content,

Granophyre, Ercall quarry.

This specimen of Ercall granophyre is as it's name suggests, from Ercall quarry in the Shropshire hills.

Hydrothermal Breccia.

This specimen of breccia is from Henfwlch mine, Nant y Moch reservoir, Ceredigion.

Lamprophyre, Maddock's hill quarry.

This was collected a few years ago, when specimens were plentiful at the foot of the exposure.

Manganese ore. South Africa.

Manganese ore can be quite complex in composition, however the known location and origin of these specimens is helpful.

Mica schist. Ontario, Canada.

Schist is a medium grade crystalline metamorphic rock. It's metamorphism from mudstone,

Microdiorite. Pembrokeshire.

Microdiorite is a medium grained intrusive igneous rock.

Mineral rich sedimentary rock-1.

This specimen is probably the most interesting rock that I have collected

Mineral rich sedimentary rock-2.

This specimen was collected from the same location as Mineral rich sedimentary rock-1

My Rock

This is my rock. You can't have it!!

Obsidan, New Zealand.

Obsidian has earned the popular name of "volcanic glass" for it's resemblance to glass.

Obsidian. Mexico.

Very often referred to as "volcanic glass" Obsidian is neither a rock or a mineral.

Orbicular Rhyolite. Chihuahua,Mexico.

In highly silicified deposits of rhyolitic tuff, quartz and feldspar crystallise in a manner which

Pentamerus sandstone. Shropshire.

This specimen of fossil rich sandstone was collected from Hillend in Shropshire.

Red Crag formation, Bawdsey beach.

This specimen was collected in September 2021 on our annual weekend away. The location was Bawdsey beach in Suffolk,

Rhyolite. Ercall quarry, Shropshire.

Rhyolite is a silica rich extrusive igneous rock. These specimens were collected from Ercall quarry in Shropshire

Sandstone nodules.( concretions ).

These specimens were collected at a road widening excavation near Enville,

Sandstone varieties. Enville, Shrops

These specimens of sandstone have no particular significance, and are included in my collection, simply because I collected them.

Septarian concretion (nodule)

Concretions are very common in the mudstones of the Welsh basin.

Serpentine, Anglesey.

The principle outcrop of serpentinite in Anglesey is near Rhoscolyn,

Serpentine, Cornwall.

Serpentinite is a metamorphic rock which contains one or more of the serpentine group minerals.

Serpentinite. bastite serpentine.

This specimen of bastite serpentine is from Kynance cove in Cornwall.

Tonalite, from Coed-y-Brenin.

The name tonalite is derived from a type locality rock, adjacent to the Tonale line,

Triassic mudstone. Blue Anchor bay.

The specimen was collected from debris on the beach at Blue Anchor bay on the Somerset coast.

Tuff with (bombs) Llandrindod wells

This specimen appears to be composed of compacted volcanic ash with inclusions of small volcanic bombs,

Vein breccia. Cwmrheidol, W. Wales.

This specimen of cut and polished vein breccia is interesting for two reasons.

Wave ripple marks. Penarth.

Penarth beach is a geologists paradise. There is so much variety of structures,

Wrekin quartzite, Ercall quarry.

The Wrekin quartzite is exposed in Ercall quarry, Shropshire,

Bill Bagley Minerals

Minerals, Rocks, Photography, and more, of Bills interests.

Minerals

Actinolite with sphalerite

Actinolite, Selavastn.

Agate geode, Dulcote hill.

Agate, seam agate.

Agate, tree agate.

Analcime, Croft quarry.

Ankerite/Ferroan dolomite, Eaglebrook mine.

Anthophylite, Czech republic.

Antigorite, serpentine var.

Aragonite, Morocco.

Aragonite, Speeton

Aragonite.

Arsenopyrite. Hingston Down quarry.

Astrophyllite, Kola peninsula.

Astrophyllite.

Australian agates.

Azurite, Burra Burra.

Baryte from Sardinia.

Baryte on calcite. Isle of Sheppey.

Baryte vugh 1, Bryntail. (CWO)

Baryte vugh 2, Bryntail. (CWO)

Baryte, Bryntail mine. (CWO)

Baryte, Bryntail. (CWO)

Baryte, Bryntail. (CWO)

Baryte, Gorn mine. (CWO)

Baryte, Gorn mine. (CWO)

Baryte, origin unknown.

Baryte, Pen y Clun. (CWO)

Baryte, Shelve

Baryte,Bryntail. (CWO)

Bauxite, Garrone, France.

Beryl. Olary, Australia.

Biotite mica. Cornwall.

Blue John,(Fluorite). Treak Cliff cavern,

Bornite.

Brochantite, Australia.

Brochantite, Geufron. (CWO)

Brochantite, Great Orme.

Calcite (dogtooth). Chihuahua,Mexico.

Calcite ( precipitated ), Ystrad Meurig.

Calcite and Quartz, Nantiera. (CWO)

Calcite cleavage planes, Tankerville.

Calcite cleavage, Nantiago mine. (CWO)

Calcite dripstone,Siglenlas. (CWO)

Calcite flat-bladed crystals 1, Nantiago. (CWO)

Calcite flat-bladed crystals 2, Nantiago. (CWO)

Calcite geode, Bridgenorth.

Calcite rhombohedral crystals, Nantiago. (CWO)

Calcite rhombs, Nantiago. (CWO)

Calcite vhug, Blaengwynlais.

Calcite, Colemans quarry.

Calcite, Cregiau quarry.

Calcite, Creigiau quarry.

Calcite, Dylife. (CWO)

Calcite, Llanfawr quarry.

Calcite, massive, Snailbeach.

Calcite, nailhead var. NSW, Australia.

Calcite, Origin unknown.

Calcite, spherical.

Calcite, St Austell.

Calcite, Taff's Well.

Calcite, Taffs Well.

Calcite, Ton Mawr.

Calcite, Ton Mawr.

Calcite, twinned scalenahedral crystals, Creigau quarry.

Calcite, two specimens, Nantiago. (CWO)

Calcite, Whately quarry.

Calcite. Blaengwynlais quarry.

Calcite. Rorington.

Calcite. Ton Mawr quarry.

Calcite. Tonfanau.

Calcite/Galena, Madan,Bulgaria.

Carborundum

Celestine, (Celestite), Erfoud.

Chalcedony, erratic.

Chalcedony, Normandy.

Chalcedony, Sahara desert.