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0 item @ $0.00  

Bournonite

#WR54043

Bournonite

#WR54043
Availability
Sold
Size
8 x 5 x 2.5 cm - Sm Cabinet 
Formula
CuPbSbS3 (RRUFF)
Locality
Herodsfoot mine, Liskeard, Cornwall, England
Tagged
sulfide , copper

Perhaps an old-timer from this famous Cornish locality - there are several cogwheel twins of grey, steely crystals of Bournonite to 5mm.

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
Willard L. Roberts Collection

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