Schmiederite

minerals

chalcomenite

umangite

clausthalite

Formula: Cu2Pb2(Se4+O3)(Se6+O4)(OH)4
Selenate, linarite-chenite group
Specific gravity: 5.6
Streak: Light blue
Colour: Bright blue, greenish blue
Environments

Hydrothermal environments

Schmiederite is a rare secondary mineral in the oxidised zone of selenium-bearing hydrothermal base metal deposits (Webmin).

Localities

At the type locality, El Cóndor Mine, Vinchina Department, La Rioja Province, Argentina, schmiederite is associated with chalcomenite, molybdomenite, umangite and clausthalite (HOM).

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