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www.mineralgallery.co.za Minerals K-O |
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Native Arsenic |
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Name
Native Arsenic
Chemistry
As
Uses
Arsenic ore/ as mineral specimen, manufacturing of glass
Color
Tin-white which quickly tarnishes to dark gray or black
Hardness
3 - 4
Specific gravity
5.4 - 5.9
Crystals
Trigonal or pseudocubic.
Accompanied by:
Barite, Cinnabar, Dyscrasite, Nickeline and Silver,
Fracture
Uneven.
Luster
Metallic but if tarnish it will often dull the luster dramatically
Cleavage
Perfect
Streak
Black
Similar to:
Antimony, Arsenopyrite, Tennantite
Arsenic has been used as a poison in the past, but it has many chemical uses and is quite an important element.
Arsenic ore is used in the manufacturing of glass.
Nickel, silver, iron, and sulfur are also commonly found on arsenic specimens
Gives off a garlic odor, especially when struck or heated.
