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0 item @ $0.00  

Silver Allargentum, Nickeline and Breithauptite

#PD30644

Silver Allargentum, Nickeline and Breithauptite

#PD30644
Availability
Sold
Size
7 x 4 x 1.5 cm - Sm Cabinet 
Formula
Ag (RRUFF)
Locality
Deer Horn mine, Cobalt dist., Ontario, Canada
Tagged
Ore Minerals

Cobalt district ores occur in distinct mineral assemblages as outlined by William Petruk in the 1971 publication "The Silver-Arsenides of the Cobalt-Gowganda Region, Ontario". This specimen fits well in group 2 of Petruk's which contain high Silver and Allargentum. It is sawed and polished on one side. The Silver is easily seen in matrix as well as the brassy luster of the Nickeline and Breithauptite.

Silver

Formula
Ag 
Crystal System
Isometric 
Crystal Habit
Arborescent, Dendritic, Massive 
Cleavage
None, None, None 
Luster
Metallic 
Color
silver white, gray white, gray 
Streak
silver white 
Class
Isometric - Hexoctahedral 
Fracture
Hackly 
Hardness
2.5-3 

Data courtesy of Webmineral.

Collection
Phillips Collection
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