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Chalcophyllite

#BN53866

Chalcophyllite

#BN53866
Availability
Sold
Size
8 x 3 x 3.5 cm - Sm Cabinet 
Formula
Cu18Al2(AsO4)4(SO4)3(OH)24·36H2O (RRUFF)
Locality
Chuquicamata mine, El Loa Prov., Antofagasta, Chile
Tagged
arsenate , copper

Bluish green, hexagonal crystals to 1.5mm. 

Chalcophyllite

Formula
Cu18Al2(AsO4)4(SO4)3(OH)24·36H2
Crystal System
Trigonal 
Crystal Habit
Platy, Tabular, Massive - Lamellar 
Cleavage
Perfect, None, None 
Luster
Vitreous - Pearly 
Color
emerald green, bluish green, grass green 
Streak
pale green 
Class
Trigonal - Hexagonal Scalenohedral 
Fracture
Uneven 
Hardness

Data courtesy of Webmineral.

Collection
Dr. Buford Nichols Collection

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