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Name: |
arsenopyrite |
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Class: |
Sulfides |
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Chemistry: |
FeAsS iron arsenic sulfide |
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Color(s): |
Silverish, whiteish-gray, metallic |
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Hardness: |
5.5 - 6 |
SpecGrav: |
5.9 - 6.2 |
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Fracture: |
uneven |
Cleavage: |
one distinct |
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Crystal: |
Monoclinic, elongated prismatic crystals with striations, twinning is common |
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Envronment: |
in sulfide ore deposits, common in medium to high temperature hydrothermal veins. Frequently in metamorphic deposits. |
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Association: |
often found with gold, silver, and nickel minerals |
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Locals: |
| Bolivia | Mexico | Canada | Hungary | Colorado, Conn., USA | England | Norway | |
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Misc: |
The most common mineral containing Arsenic, it is soluble in Nitric Acid, yielding Sulfur. If it is struck with a metal object it produces a garlic odor. Its name is a contraction of an archaic term "arsenical pyrites". |
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Photos |
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1.) Yao Guang Xiang Mine, Cheng Zhu City
S. Hunan China |
4.) Zacatecas, Mexico |
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