Sphalerite

Info: The crystals of sphalerite are in cubical form. It can often contain a traces of other metals as iron, manganese, cadmium, sometimes even indium and gallium. His colouration varies from red to yellow to brown. Crystals with more iron then sulfur have metalic shine, others have more diamond shine.

Found: Major deposits of this mineral are found in Romania, Germany, Austria, Spain, France, Mexico, Canada, USA, Scotland, Japan and Australia.

Used for: Important ore for industry - from sphalerite are extracted zinc, cadmium, indium and gallium.

Crystal structure
Cubical
Hardness
3,5 - 4
Colour
Red, yellow brown, black
Shine
From pitchy to diamond