Stromeyerite

A variety of Minerals

Stromeyerite specimen - rock identification

What is Stromeyerite?

Stromeyerite is a sulfide mineral of copper and silver, with the chemical formula AgCuS. It forms opaque blue grey to dark blue orthorhombic crystals. It was discovered in 1832 in Central Bohemia Region, Czech Republic, and named after the German chemist, Friedrich Stromeyer who performed the first analysis of the mineral.

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Stromeyerite Localities Map

See where Stromeyerite is found with a localities map, collecting zones, and geology context. Generate a sample map preview below.

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North ZoneCentral RidgeSouth Basin

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More Images

Stromeyerite specimen 2
© Robert M. Lavinsky

Quick Facts

Physical Properties

Color
Blue gray, dark blue, dark steel gray, or steel gray
Hardness (Mohs)
2.5 - 3
Density
6.33 g/cm³
Streak
Steel gray

Chemical Properties

Chemical Formula
AgCuS
Elements
Ag, Cu, S

Also Known As

StromeyeriteCypargyrite
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