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Deutsche Freibergit {m} [min.] Synonyme

Englische freibergite Synonyme

freibergite Definition

freibergite Bedeutung

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Freibergite is a complex sulfosalt mineral of silver, copper, iron, antimony and arsenic with formula 124S13. It has cubic crystals and is formed in hydrothermal deposits. It forms one solid solution series with tetrahedrite and another with argentotennantite. Freibergite is an opaque, metallic steel grey to black and leaves a reddish-black streak. It has a Mohs hardness of 3.5 to 4.0 and a specific gravity of 4.85 - 5. It is typically massive to granular in habit with no cleavage and an irregular fracture.

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