a classic combination of quartz, pyrite, sphalerite, chalcopyrite from Huanzala mine, Peru with quartz points up to 1.5cm
|Mineral Group||quartz + sulphide|
|Composition||SiO4 + Fe2S + ZnS + CuFeS2|
|Origin||Huanzala mine, Peru|
quartz – is a mineral composed of crystals of silicon and oxygen atoms in a continuous framework of SiO4 the second most abundant mineral in Earth’s continental crust, after feldspar.
pyrite – The mineral pyrite, or iron pyrite, also known as fool’s gold, is an iron sulfide with the chemical formula FeS2. This mineral’s metallic luster and pale brass-yellow hue give it a superficial resemblance to gold, hence the well-known nickname of fool’s gold.
sphalerite – is a mineral that is the chief ore of zinc. It consists largely of zinc sulfide in crystalline form but almost always contains variable iron.
chalcopyrite – is a copper iron sulfide mineral that crystallizes in the tetragonal system. It has the chemical formula CuFeS2 it has a brassy to golden yellow color