Sulphides and Sulphosalts
Sulphides and Sulphosalts are minerals composed of metals combined with the sulphur element. This class includes about 350 species.
Sulphides form when sulphur binds to metals; this group includes antimonides, arsenides and telluria.
Sulphosalts are minerals composed of sulphur associated with one or more semi-metals (antimony, arsenic, bismuth), and bound to metals (silver, copper, lead, iron). Silver and iron sulphides (argentopyrite), or copper and iron sulphides (bornite) are Sulphosalts. Sulphosalts are generally tender and fragile.
They account for 15-20% of the minerals. The most representative minerals are: Acanthite, Alabandite, Bornite, Bournonite, Carrollite, Chalcopyrite, Cinabre, Cubanite, Dyscrasite, Galène, Këstérite, Marcasite, Pyrite, Réalgar, Sphalérite, Stibine, et Tétraédrite.
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STIBNITE – Wuning Mine, China
GALENA – Sayari Mine, Bolivia
FLUORITE and GALENA on QUARTZ – Rogerley Mine, England, UK
SKUTTERUDITE and QUARTZ – Bou Azzer, Morocco
PYRITE – Navajun, Spain
FLUORITE on PYRITE – Peru
FLUORITE with CALCITE and SPHALERITE – Elmwood Mine, USA
Almost complete paragenesis of the Elmwood Mine with…
ORPIMENT – Peru
Very pretty Orpiment from Peru that forms like…
RHODONITE on GALENA – Australia
Beautiful Rhodonite on Galena of Australia. This piece…