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0 item @ $0.00  

Franckeite

#RW50214

Franckeite

#RW50214
Availability
Sold
Size
7 x 5 x 3 cm - Sm Cabinet 
Formula
Fe2+(Pb,Sn2+)6Sn4+2Sb3+2S14 (RRUFF)
Locality
San José mine, Oruro City, Oruro Dept., Bolivia
Tagged
ore mineral , sulfide , tin

Tiny prismatic crystals in 4-6mm rounded clusters. Excellent specimen.

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
Robert J. Waidler Collection

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