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0 item @ $0.00  

Uraninite with Pyrite

#53560

Uraninite with Pyrite

#53560
Availability
Sold
Size
6 x 4 x 2.5 cm - Sm Cabinet 
Formula
UO2 (RRUFF)
Locality
Wood mine, Central City dist., Gilpin Co., Colorado, United States

The specimen is sawed flat on two sides and shows the black formless masses of dull black uraninite. It is interesting to study. The Uraninite looks as though it impregnated and/or perhaps replaces the Pyrite or just cements the brecciated rock. Yes it is hot and will be wrapped in lead foil for shipping adding to the cost.

Radioactive!!

Uraninite

Formula
UO2 
Crystal System
Isometric 
Crystal Habit
Crystalline - Coarse, Botryoidal, Dendritic 
Cleavage
Good, None, None 
Luster
Sub Metallic 
Color
brownish black, gray, grayish black, black 
Streak
brownish black 
Class
Isometric - Hexoctahedral 
Fracture
Brittle - Conchoidal 
Hardness
5-6 

Data courtesy of Webmineral.

Special Info
Radioactive!!
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