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Formula: CuBiS2
Sulphosalt, chalcostibite group
Specific gravity: 6.38
Hardness: 2
Streak: Black
Colour: Greyish to tin-white
Environments
Emplectite is a rare sulphosalt formed at medium temperatures in hydrothermal veins with other sulphides and sulphosalts
(HOM).
Localities
At Horní Slavkov, Sokolov District, Karlovy Vary Region, Czech Republic, emplectite is associated with
chalcopyrite, pyrite,
sphalerite, molybdenite,
quartz and fluorite
(HOM).
At the Clara Mine, Oberwolfach, Ortenaukreis, Freiburg Region, Baden-Württemberg, Germany, although emplectite is rare, crystals
have been found, exceptionally up to 1 cm in size. Associated minerals include
bariopharmacosiderite, scorodite,
fluorite and baryte, as well as
secondary beyerite and
bismutite
(R&M 90.1.43).
The type locality is the Tannenbaum mine, Antonsthal, Breitenbrunn, Erzgebirgskreis, Saxony, Germany.
From Johanngeorgenstadt, Erzgebirgskreis, Saxony, Germany, a specimen has been found with emplectite, in some cases partly filmed
with limonite, in association with quartz and
chalcopyrite
(AM 18.277).
At Kairagach Au deposit, Okhangaron District, Tashkent, Uzbekistan, emplectite is associated with
tetrahedrite–tennantite,
luzonite–famatinite,
pyrite, mawsonite,
nekrasovite, chalcopyrite,
laitakarite, bismuth,
calcite, quartz and
baryte
(HOM).
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