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Johannite with Chalcanthite

#29800

Johannite with Chalcanthite

#29800
Availability
Sold
Size
3 x 2 x 1 cm - Thumbnail 
Formula
Cu(UO2)2(SO4)2(OH)2·8H2O (RRUFF)
Locality
Blue Lizard mine, Red Canyon, San Juan Co., Utah, United States
Tagged
copper

Bright green Johannite spherulites scattered with blue Chalcanthite. There are some acicular sprays unidentified mineral.

Johannite

Formula
Cu(UO2)2(SO4)2(OH)2·8H2
Crystal System
Triclinic 
Crystal Habit
Druse, Reniform, Massive 
Cleavage
Good, None, None 
Luster
Vitreous (Glassy) 
Color
yellow, greenish yellow 
Streak
light green 
Class
Triclinic - Pinacoidal 
Fracture
Irregular 
Hardness

Data courtesy of Webmineral.

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