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0 item @ $0.00  

Morinite (cuprian) with Perhamite, Chlorargyite & Dufrenite

#49814

Morinite (cuprian) with Perhamite, Chlorargyite & Dufrenite

#49814
Availability
Sold
Size
7 x 4 x 2.5 cm - Sm Cabinet 
Formula
NaCa2Al2(PO4)2(OH)F4·2H2O (RRUFF)
Locality
Silver Coin mine, Humboldt Co., Nevada, United States
Tagged
phosphate

All specimens form Silver Coin are subject to intense scoping for a long time. Even then you won't see everything. The four minerals identified so far on this piece are the blue cuprian Morinite, with pearly micro crystals of Perhamite, and beady dark green Dufrenite. The Chlorargyrite is not photographed, but form waxy green looking kinda cubic crystals. There is probably Kidwellinte on the specimen and leucophosphite. 

Morinite

Formula
NaCa2Al2(PO4)2(OH)F4·2H2
Crystal System
Monoclinic 
Cleavage
Perfect, Indistinct, None 
Luster
Vitreous - Greasy 
Color
colorless, white, light pink, pink 
Streak
white 
Class
Monoclinic - Prismatic 
Fracture
Brittle 
Hardness
4-4.5 

Data courtesy of Webmineral.

Mineralpedia
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