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0 item @ $0.00  

Mansfieldite (cobaltoan) with Smolianinovite

#35283

Mansfieldite (cobaltoan) with Smolianinovite

#35283
Availability
Sold
Size
5 x 4 x 2.5 cm - Miniature 
Formula
AlAsO4·2H2O (RRUFF)
Locality
Mt. Cobalt mine, Mt Isa, Queensland, Australia
Tagged
arsenate

Rich coverage of tiny spherules of mansfieldite color purple from the presence of cobalt. The Smolianinovite  is a lot of the orange crust. coverage on backside also.

Mansfieldite

Formula
AlAsO4·2H2
Crystal System
Orthorhombic 
Crystal Habit
Spherical, Encrustations 
Cleavage
Indistinct, None, None 
Luster
Vitreous (Glassy) 
Color
white, light gray, reddish gray 
Streak
white 
Class
Orthorhombic - Dipyramidal 
Hardness
3.5-4 

Data courtesy of Webmineral.

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