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0 item @ $0.00  

Chalcophyllite on Azurite

#AH53613

Chalcophyllite on Azurite

#AH53613
Availability
Sold
Size
6 x 4.5 x 3 cm - Sm Cabinet 
Formula
Cu18Al2(AsO4)4(SO4)3(OH)24·36H2O (RRUFF)
Locality
Piesky, Špania Dolina, Banská Bystrica, Slovakia
Tagged
arsenate

Sparse tiny greenish blue Chalcophyllite crystals 1mm and less on 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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