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Formula: Cu8(Fe,Zn)3Sn2S12
Sulphide, stannite group, zinc-
and tin- bearing mineral
Crystal System: Orthorhombic
Specific gravity: 4.68 calculated
Hardness: 4
Streak: Dark brown-grey
Colour: Brass-brown
Environments
Stannoidite occurs in hydrothermal
tin-copper sulphide deposits
(HOM).
Localities
At the Chelopech Au-Cu Mine, Chelopech Municipality, Sofia Province, Bulgaria, stannoidite is associated with
hemusite, enargite,
luzonite, colusite,
renierite, tennantite,
chalcopyrite and pyrite
(HOM).
At the type locality, the Konjo mine, Miyahara, Mimasaka city, Okayama Prefecture, Japan, stannoidite is
associated with chalcopyrite,
galena, tetrahedrite,
stannite, cassiterite,
siderite and quartz
(HOM).
Stannoidite from the Konjo Mine -
Image
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