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Franckeite var. Potosiite  - exceptionally well-crystalized
Franckeite var. Potosiite  - exceptionally well-crystalized Franckeite var. Potosiite  - exceptionally well-crystalized Franckeite var. Potosiite  - exceptionally well-crystalized
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Franckeite var. Potosiite - exceptionally well-crystalized (Ref: 7.AE-193)

San Jose Mine, Oruro, Oruro Department, Bolivia
79mm x 41mm x 38mm
minID: 1JQ-JKX
$2400
Franckeite has always been an incredibly rare mineral and was only known in micro crystals until the major find in 2004 of what was then called Potosiite. This is now known to be a variety of Franckeite with less tin than usual. This was not a large find but the better specimens were quickly gobbled up by collectors and are almost never available now. This piece was one of those major specimens, it is from a collection we are liquidating for the owner and retains the original Kosnar label. In incredible condition for this delicate mineral with individual crystals that reach over 1 CM, in clusters and free standing masses. This piece also has crystals of the original Franckeite that is not the Potosiite variety so this brings two of the world's rarest Sulfosalts on a single matrix. For the species, this is also an esthetic piece, with very three dimensional form and a good metallic luster.
Data last checked on 20th Sep 2022 - specimen may no longer be available

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See Also

Franckeite
San Jose Mine, Oruro City, Cercado Prov., Oruro Dept., Bolivia
$2500
50mm x 30mm x 30mm
Franckeite / (classic material)
San Jose Mine, Oruro City, Cercado Province, Oruro Department, Bolivia
$1250
78mm x 56mm x 48mm
Andorite on Zinkenite
San Jose Mine, Oruro City, Cercado Province, Oruro Department, Bolivia
$2700
66mm x 46mm x 32mm
Andorite with Zinkenite
San Jose Mine, Oruro City, Cercado Province, Oruro Department, Bolivia
$2750
65mm x 57mm x 23mm
Valentinite, Pyrite
San Jose Mine, Oruro City, Cercado Province, Oruro Department, Bolivia
$1800
30mm x 20mm x 10mm
Ferberite (twinned)
Tazna Mine, Cerro Tazna, Nor Chichas Province, Potosi, Bolivia
$2400
60mm x 50mm x 50mm
Wulfenite
San Juan Poniente Shaft, Ojuela Mine, Mapimi, Durango, Mexico
$2400
120mm x 80mm x 50mm
Ametrine
Anahi Mine, La Gaiba, Sandoval, Santa Cruz, Bolivia
$2229 *
185mm x 86mm x 85mm
Cumengeite
Amelia Mine, Santa Rosalia, Baja Sur, Mexico
$2400
40mm x 30mm x 20mm
Olivenite
Milpillas Mine, level 992, Cuitaca, Municipio Santa Cruz, Sonora  Mexico
$2377 *
77mm x 66mm x 24mm
Azurite
Milpillas Mine, level 1100, Cuitaca, Municipio Santa Cruz, Sonora  Mexico
$2377 *
40mm x 34mm x 10mm
Elbaite Tourmaline with Lepidolite
Himalaya Mine, Mesa Grande, San Diego Co., California, USA
$2400
60mm x 10mm x 10mm
Morganite with Lepidolite
Stewart Mine, Tourmaline Queen Mountain, Pala, San Diego Co., California, USA
$2400
40mm x 30mm x 30mm
gemmy RHODOCHROSITE
Uchucchacua Mine, Oyon Province, Lima Department, Peru
$2380
88mm x 73mm x 57mm
Azurite
Milpillas Mine, Cuitaca, Mun. de Santa Cruz, Sonora, Mexico
$2500
70mm x 40mm x 10mm
* price is an approximate conversion and may not be accurate.

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