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0 item @ $0.00  

Chalcanthite

#BN53877

Chalcanthite

#BN53877
Availability
Sold
Size
13 x 6 x 5 cm - Cabinet 
Formula
CuSO4·5H2O (RRUFF)
Locality
Chuquicamata mine, El Loa Prov., Antofagasta, Chile
Tagged
copper

When held to the light, this specimen has an amazing cobalt blue color. It's a great chunk of Chalcanthite. You must keep it from the air and sun though. It's been in an old collection for years - 30 years or so? So it's stable enough, but just keep it in a plastic bag.

Chalcanthite

Formula
CuSO4·5H2
Crystal System
Triclinic 
Crystal Habit
Encrustations, Stalactitic, Reniform 
Cleavage
Imperfect, Indistinct, Indistinct 
Luster
Vitreous (Glassy) 
Color
green, green blue, light blue, dark blue 
Streak
white 
Class
Triclinic - Pinacoidal 
Fracture
Conchoidal 
Hardness
2.5 

Data courtesy of Webmineral.

Collection
Dr. Buford Nichols Collection

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