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0 item @ $0.00  

Franckeite

#PD34358

Franckeite

#PD34358
Availability
Sold
Size
6 x 3 x 4 cm - Sm Cabinet 
Formula
Fe2+(Pb,Sn2+)6Sn4+2Sb3+2S14 (RRUFF)
Locality
Trinacria mine, Poopo, near Oruro, Bolivia
Tagged
tin

Mass of silvery platy or foliated Franckeite with dark black micro Wurtzite crystals in vugs. This comes with a Mitchell Gunnell colletion tag as well as a copy of a Foote Mineral Co., and an original David New tag.

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
Phillips Collection

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