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0 item @ $0.00  

Chalcoalumite

#PD30814

Chalcoalumite

#PD30814
Availability
Sold
Size
9 x 4.5 x 1.5 cm - Sm Cabinet 
Formula
CuAl4SO4(OH)12·3H2O (RRUFF)
Locality
New East Wheal Russel, Tavistock, Devon, England
Tagged
copper

Light green massive Chalcoalumite on sulfide matrix. There are no crystals.

Chalcoalumite

Formula
CuAl4SO4(OH)12·3H2
Crystal System
Monoclinic 
Crystal Habit
Fibrous, Encrustations 
Cleavage
Perfect, None, None 
Luster
Vitreous - Dull 
Color
blue, blue gray, greenish blue, light blue green 
Streak
bluish white 
Class
Monoclinic - Sphenoidal 
Fracture
Flexible 
Hardness
2.5 

Data courtesy of Webmineral.

Collection
Don Phillips Collection

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