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ArsenopyriteFeAsS

Class: Sulfide
Hardness: 5.5 - 6
Density: 5.9 - 6.2
Streak: Black
Lustre: Metallic
Habit: Fine-grained
Colours: Silver white to steel gray

  Crystal System: Monoclinic
Cleavage: Indistinct
Fracture: Uneven
Magnetism: None
Reaction with HCl: Unknown

Identification in hand sample:
Gives off a garlic odour when crushed or heated. Colour is indicative.

Associations:
Most common arsenic-bearing mineral. Found in high temperature hydrothermal veins, associated with galena, sphalerite, pyrite, chalcopyrite, scheelite, cassiterite and pyrrhotite.

Industrial / ecomonic uses:
A possible source of arsenic, however better secondary sources from smelting processes of other ores exist.

  

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