|ARSENOPYRITE MINERAL FACTS|
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.Arsenopyrite Mineral Facts:
Chemical Formula: FeAsS - 46% Arsenic by weight
Colors: Silver to steel gray in color. Streak is black.
Hardness: 5.5 to 6
Cleavage: No cleavage but the mineral is brittle and its fracture uneven.
Luster:. Metallic luster.
Optics: (Refractive Index): Opaque
Identification and Diagnostics
Localities and Origins:
Arsenopyrite was formerly the source of nearly all the arsenic of commerce. The mineral is concentrated by mechanical methods, and the concentrates are heated in retorts.When the mineral contains a reasonable amount of cobalt or of gold these metals are extracted. The metal arsenic has very little use in the arts, though its compounds find many applications as insecticides, medicines, pigments, in tanning, etc.
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Arsenopyrite, small crystals
Please note that the author, Chris Ralph, retains all copyrights to this entire document and it may not be reproduced, quoted or copied without permission.
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