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Aubertite with Copiapite

#BW57380

Aubertite with Copiapite

#BW57380
Availability
Sold
Size
4 x 3.5 x 3 cm - Miniature 
Formula
Cu2+Al(SO4)2Cl·14H2O (RRUFF)
Locality
Chuquicamata mine, El Loa Prov., Antofagasta, Chile
Tagged
copper

Light blue earthy Aubertite throughout the mass. The specimen also carries Quartz crystals, which look blue from the adjacent Aubertite. In the photos the crystals that are blue are just Quartz, not Aubertite. For a simple copper-aluminum sulfate it is only found in maybe a few dozen worldwide localities.

Aubertite

Formula
Cu2+Al(SO4)2Cl·14H2
Crystal System
Triclinic 
Cleavage
Perfect, None, None 
Luster
Vitreous (Glassy) 
Color
azure, blue 
Streak
light blue 
Class
Triclinic - Pedial 
Hardness
2-3 

Data courtesy of Webmineral.

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