Franckeite (Var: PotosÃite) with Franckeite (Ref: K125)
San Jose Mine, Cercado Province, Oruro City, Oruro Dept., Bolivia
50mm x 40mm x 25mm
minID: W2C-9LL
A fine example of the rare sulfosalt species, Franckeite, covered with crystals of what was formerly known as Potosiite (now discredited). Potosiite is the variety of Franckeite that is tin-poor in its chemistry with crystals more tabular
in shape. There are large, flat individual crystals on this specimen to 6 x 6mm. A rare specimen.
From: Marin Minerals
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See Also
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Franckeite
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Ludlamite on Siderite and Pyrite
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$193 *
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Ludlamite on Siderite and Pyrite
Huanuni Mine, Huanuni, Dalence Province, Oruro Department, Bolivia
$181 *
67mm x 38mm x 38mm
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Franckeite
Itos Mine, Oruro, Cercado Prov., Oruro, Bolivia
$1500
20mm x 20mm x 10mm
From: The Arkenstone