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Sphalerite | Physical - Optical Properties, Occurrence, Uses & More
Sphalerite mineral is in group of Sulfide mineral that is formula ((Zn, Fe)S).It is the principal ore of zinc. Pure sphalerite is colorless and rare. Normally, iron is present, causing the color to vary from pale greenish yellow to brown and black with increasing iron content. When iron content is high it is an opaque black variety, marmatite. It is usually found in association with galena ...