Pyrargyrite

sulfosalt

hydrothermal

Formula: Ag3SbS3 sulfosalt
Specific gravity: 5.85
Hardness: 2½; to 3
Streak: Cherry red
Colour: Red to black
Solubility: Slightly soluble in nitric acid
Environments:

Hydrothermal environments

Pyrargyrite is a late-stage, low temperature mineral in the enrichment zone of epithermal (low temperature) hydrothermal silver ore veins.

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