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0 item @ $0.00  

Semseyite with Boulagerite

#14342

Semseyite with Boulagerite

#14342
Availability
Sold
Size
5 x 4.5 x 3 cm - Miniature 
Formula
Pb9Sb8S21 (RRUFF)
Locality
Falun, Dalarna, Sweden
Tagged
sulfide

This specimen was sent to Bart Cannon for microprobe work. It was originally labeled as geocronite with stephanite. Results of the probe clarified it a bit and it was found that the geocronite was probably semseyite. The two were too close to definitley pin down. Also in the matrix is boulangerite and bournonite.

Microprobed

Semseyite

Formula
Pb9Sb8S21 
Crystal System
Monoclinic 
Crystal Habit
Radial, Spherical, Tabular 
Cleavage
Good, None, None 
Luster
Metallic 
Color
black, gray 
Streak
black 
Class
Monoclinic - Prismatic 
Fracture
Brittle 
Hardness
2.5 

Data courtesy of Webmineral.

Special Info
Microprobed
Mineralpedia
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On Dakota Matrix
Previously Sold Semseyite
On Dakota Matrix
Other Available Semseyite
WebMineral
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Mindat
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