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0 item @ $0.00  

Guettardite

#AH62112

Guettardite

#AH62112
Availability
Sold
Size
11 x 7 x 5 cm - Cabinet 
Formula
Pb(Sb,As)2S4 (RRUFF)
Locality
Brobdignag mine, Red Mtn. dist., San Juan Co., Colorado, United States
Tagged
ore mineral , sulfide

A large specimen of silvery, massive Guettardite and probably contains some Zinkenite. It is encased in Siderite. Hampson collected this specimen in 1977. Specimens of Guettardite are rarely seen on the market. This is an exceptional specimen. It is an ore of lead, but since it is a rare mineral, it cannot be regarded as an important source of lead.

Guettardite

Formula
Pb(Sb,As)2S4 
Crystal System
Monoclinic 
Crystal Habit
Acicular, Anhedral Grains 
Cleavage
Perfect, None, None 
Luster
Metallic 
Color
grayish black 
Streak
brownish 
Class
Monoclinic - Prismatic 
Fracture
Brittle - Conchoidal 
Hardness

Data courtesy of Webmineral.

Collection
Arnold G Hampson Collection

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