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0 item @ $0.00  

Chalcophyllite on Azurite

#AH53612

Chalcophyllite on Azurite

#AH53612
Availability
Sold
Size
4.5 x 3 x 1 cm - Miniature 
Formula
Cu18Al2(AsO4)4(SO4)3(OH)24·36H2O (RRUFF)
Locality
Piesky, Špania Dolina, Banská Bystrica, Slovakia
Tagged
arsenate , copper

Good Chalcophyllite crystals to less than 1mm with Azurite.

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
Arnold G Hampson Collection

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