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0 item @ $0.00  

Spangolite with Cornwallite & Chalcophyllite

#PD32379

Spangolite with Cornwallite & Chalcophyllite

#PD32379
Availability
Sold
Size
8.5 x 8 x 3.5 cm - Sm Cabinet 
Formula
Cu6AlSO4(OH)12Cl·3H2O (RRUFF)
Locality
Majuba Hill mine, Pershing Co., Nevada, United States
Tagged
arsenate , sulfate

Excellent coverage of blue-green Spangolite crystals to 1.5mm encrusting nearly the entire central portion of the specimen, associated with or covered by green botryoidal Cornwallite surrounded by pearly light green platy Chalcophyllite crystals. Nice combo piece of these species!

Comes with a label from the J. Parnau collection, for whom the mineral Parnauite (TL Majuba) was named.

Spangolite

Formula
Cu6AlSO4(OH)12Cl·3H2
Crystal System
Trigonal 
Crystal Habit
Prismatic, Platy, Tabular 
Cleavage
Perfect, Distinct, None 
Luster
Vitreous (Glassy) 
Color
blue green, green, dark green, emerald green 
Streak
light green 
Class
Trigonal - Ditrigonal Pyramidal 
Fracture
Conchoidal 
Hardness
2.5-3 

Data courtesy of Webmineral.

Collection
Phillips Collection

Label from the Jack Parnau Collection

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