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Parnauite with Chalcophyllite

#52902

Parnauite with Chalcophyllite

#52902
Availability
Sold
Size
5.5 x 2 x 1.5 cm - Sm Cabinet 
Formula
Cu9(AsO4)2(SO4)(OH)10·7H2O (RRUFF)
Locality
Majuba Hill mine, Pershing Co., Nevada, United States
Tagged
arsenate , copper

Type locality specimen. The Parnauite is less than 1mm in size but is clustered in 6x5mm vug. The Parnauite forms equant to tabular crystals resembling the edges of pages of a book. They are glassy and translucent along the edges. It is probably one of the rarer minerals at Majuba. On the far end is Chalcophyllite - hexagonal thin bluish green plates. 

Type Locality

Parnauite

Formula
Cu9(AsO4)2(SO4)(OH)10·7H2
Crystal System
Orthorhombic 
Crystal Habit
Rosette, Scaly, Encrustations 
Cleavage
Good, None, None 
Color
blue green, green, light blue 
Streak
greenish white 
Class
Orthorhombic - Disphenoidal 
Hardness

Data courtesy of Webmineral.

Special Info
Type Locality
Mineralpedia
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