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Franckeite

#BAC64159
Franckeite from San José mine, Oruro City, Oruro Dept., Bolivia - BAC64159
Franckeite from San José mine, Oruro City, Oruro Dept., Bolivia - BAC64159

Franckeite

#BAC64159
Availability
Available
Price
$75.00
Size
2.5 x 2.5 x 1.5 cm - Thumbnail 
Formula
Fe2+(Pb,Sn2+)6Sn4+2Sb3+2S14 (RRUFF)
Locality
San José mine, Oruro City, Oruro Dept., Bolivia
Tagged
sulfide , tin

Very, very good large crystals of Franckeite with a platy habit and striations. The largest crystal is 6mm. There are also prismatic Arsenopyrite and an acicular mineral.

Franckeite

Formula
Fe2+(Pb,Sn2+)6Sn4+2Sb3+2S14 
Crystal System
Triclinic 
Crystal Habit
Tabular, Massive - Fibrous, Radial 
Cleavage
Perfect, None, None 
Luster
Metallic 
Color
grayish black, blackish gray 
Streak
grayish black 
Class
Triclinic - Pinacoidal 
Fracture
Flexible 
Hardness
2.5 

Data courtesy of Webmineral.

Collection
William & Anne Cook Collection
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Previously Sold Franckeite
On Dakota Matrix
Other Available Franckeite
WebMineral
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