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Bournonite

#PD33533

Bournonite

#PD33533
Availability
Sold
Size
4 x 12 x 8 cm - Cabinet 
Formula
CuPbSbS3 (RRUFF)
Locality
Casapalca, Lima Dept., Peru
Tagged
sulfide

Cabinet sized specimen covered with large silver-gray Bournonite crystals to over 1cm with classic cogwheel twinning with small quartz crystals scattered on some of the larger crystals, giving a nice contrast to the steel grey Bournonite. 

Bournonite

Formula
CuPbSbS3 
Crystal System
Orthorhombic 
Crystal Habit
Platy, Pseudo Cubic, Cog-wheel 
Cleavage
Imperfect, None, None 
Luster
Metallic 
Color
gray, black, steel gray 
Streak
gray 
Class
Orthorhombic - Dipyramidal 
Fracture
Sub Conchoidal 
Hardness

Data courtesy of Webmineral.

Collection
Phillips Collection

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