Sulfide Collection

Cinnabar
Twinned dark red cinnabar crystals with small quartz crystals. Cinnabar comprises of (mercury sulphide). Specimen from the Natural History Museum, London

Niccolite mineral with metallic lustre, comprises of nickel arsenide. It is also known as coppernickel and nickeline. This specimen is from the Natural History Museum, London

Sperrylite is a platinum di-arsenide (PtAs2) which occurs rarely in a few localities across the world. This specimen originates from South Africa, and is of exceptional quality

Plate 6a from Histoire naturelle? (1789)
Plate 6a, Histoire Naturel Des Mineraux, from Histoire naturelle: ou, Exposition des morceaux, les mieux choisis pour servir? (1789) by by Swebach Desfontaines

Chalcopyrite or copper pyrite comprises of (copper iron sulphide). It is a common mineral and is found in almost all sulphide deposits. Specimen from Wheal Towan, Cornwall

Arsenopyrite
Specimen number BM 20204, from the Virtuous Lady Mine, Buckland Monachorum, Devon, England

Pyrite, Fools Gold
Regular, cube-shaped crystals look as if they ve been polished but are formed like this within rock cavities. Pyrite comprises of (iron sulphide)

Marcasite comprises of (iron sulphide). It is similar in appearance to pyrite, but has a different structural composition

Fluorite, pale green octahedron
With calcite, galena and pyrite. Its properties include fluorescence and cubed crystals. Specimen from Glengowla East mine, Oughterard, Co. Galway, Eire

Brownfield (1973) H3. 7 ordinary chondrite
This meteorite fell in Texas in 1937. It has very small chondrules, plus highly-reflective metal and sulphide grains can easily be picked out

Chalcosine
Dull black twinned crystal with white calcite (schiefer spar). From the Levant mine, St. Just, Cornwall, UK

Sphalerite
Drusy aggregates of black lustrous crystals. Sphalerite or zinc blende comprised of (zinc iron sulphide). Specimen from Nenthead, Cumbria

Realgar comprises of (arsenic sulphide). It is also known as ruby sulphur and is a rare non-metallic sulphide mineral. Specimen from the Natural History Museum, London

Pentlandite comprises of (iron nickel sulphide). This mineral does not produce good crystals and is usually found in massive form. Specimen from the Natural History Museum, London

Trechmannite
A red crystal of trechmannite comprised of (silver arsenic sulphide). A specimen from the collections of the Natural History Museum, London

Tetrahedrite

Millerite comprises of (nickel sulphide) and is characterized by hair-like fibrous crystals arranged into sprays. Specimen from the collections of the Natural History Museum, London

Sphalerite or zinc blende
Dark crystals of sphalerite or zinc blende comprised of (zinc iron sulphide). Specimen from the collections of The Natural History Museum, London

Bornite
A specimen of the mineral Bornite. This specimen is from the collections held at the Natural History Museum, London

Jamesonite comprises of lead iron antimony sulphide, and is characterized by hair-like fibrous crystals. This specimen is from the collections held at the Natural History Museum, London

Cobaltite

Chalcophyllite
Chalcopyrite or copper pyrite comprises of (copper iron sulphide). Its a common mineral and found in almost all sulphide deposits

Molybdenite comprises of (molybdenum sulphide) and is a very soft, highly lustrous metallic mineral. Specimen from the collections of the Natural History Museum, London

Chalcosine, from the St Ives Consols mines, Cornwall
A specimen of the mineral chalcosine, a detached group of lenticular, pseudo-hexagonal crystals, the largest about 12 mm across from St Ives Consols mines, Cornwall, U.K

Boulangerite comprises of (lead antimony sulphide) and is characterized by fine, fibrous crystals. This specimen is from the Natural History Museum, London

Stephanite

Centipede in Baltic amber
Centipede, Chilopoda in Baltic amber. The centipede has been half polished away and is filled with pyrite crystals

Plate 9a from Histoire naturelle? (1789)
Plate 9a, Mineralogie, from Histoire naturelle: ou, Exposition des morceaux, les mieux choisis pour servir? (1789) by by Swebach Desfontaines

Gersdorffite comprises of (nickel arsenic suphide). It is associated with hydrothermal veins and magma derived from sulphite deposits. Specimen from the Natural History Museum, London

Pyrite specimen

The Bustee aubrite
Photograph of the Bustee aubrite, a light-coloured meteorite containing brown oldhamite crystals

Bournonite or cog-wheel ore comprises of (copper lead antimony sulphide). Cog wheel ore contains the mineral chromite, though it is difficult to extract from crystals

Tennantite
Crust of sparkling silvery metallic examples of tennanite (copper arsenic sulphide) some partly altered by copper rust in cavity in matrix. Specimen from Relistan mine, Cornwall

Acanthite
A specimen of the mineral acanthite (silver sulphide). Acanthite is a sliver based mineral and black in colour

Galena
A specimen of the mineral galena (lead sulphide) which is a major ore of lead as well as silver. This specimen is from Wanlockhead mine Dumfriesshire, Scotland

Stibnite (antimony sulphide) is a metallic mineral with fine, long crystal clusters. Specimen from the collections of the Natural History Museum, London

Lapis lazuli from Afghanistan
Polished slab of lapis lazuli containing some brassy-coloured pyrite. Lapis lazuli (sodium calcium aluminum silicate sulphur sulphate) is a rich blue opaque, semi-precious stone

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