Zinkenite

jamesonite

boulangerite

Formula: Pb9Sb22S42
Sulfosalt
Specific gravity: 5.25 to 5.35
Hardness: 3 to 3½
Streak: Steel-grey
Colour: Steel-grey
Environments:

Hydrothermal environments

Zinkenite is a constituent mineral in hydrothermal veins associated with base metal deposits, tin sulphides and sulfosalts (Webmin, HOM). Associated minerals include stibnite, jamesonite, boulangerite, bournonite, plagionite, fülöppite, cassiterite, stannite, andorite, pyrite, sphalerite, chalcopyrite, arsenopyrite and galena. (HOM)

At the Ramona mine, Cripple Creek mining district, Colorado, USA, zinkenite is associated with krennerite. (MinRec 36.2.182)

Common impurities: Ag,Cu,Fe,As

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