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Chemical Composition: (ZnFe)S
Group: Sphalerite
System: Isometric
Family: Sulphides
Hardness: 3.5 - 4
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- Tetrahedral or pseudo-octahedral crystal
- Other colours: yellow or reddish-brown, blackish,
pink, green, colourless
- Heavy, very fragile
- Perfect cleavage
- Transparent or translucent
- Soluble in hydrochloric acid
- Infusible if pure, but becomes more fusible as the
iron content increases
- Found in: Austria, Bolivia, Canada, Czech Republic
England, Hungary, Italy, Slovakia, Spain, Switzerland,
USA, Yugoslavia
- By-products of purification: cadmium, gallium, indium
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