Sulphide, paramorph of argentopyrite
Specific gravity: 4.101 to 4.215
Hardness: 1 to 1½
Colour: Golden brown, tarnishes violet-blue
Sternbergite is a secondary silver sulphosalt that occurs in hydrothermal veins in silver-bearing ore deposits (Webmin, HOM).
Associated minerals include stephanite,
dolomite, calcite and
The type locality is Jáchymov, Karlovy Vary District, Karlovy Vary Region, Czech Republic.
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