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Molybdofornacite with Gartrellite

#PD36449

Molybdofornacite with Gartrellite

#PD36449
Availability
Sold
Size
2.5 x 2 x 2 cm - Thumbnail 
Formula
CuPb2MoO4AsO4(OH) (RRUFF)
Locality
Tsumeb mine, Tsumeb, Namibia
Tagged
arsenate , copper

Bright translucent green prismatic micro crystal to about 0.5mm or more. Smaller green Gartrellite crystals can also be seen in abundance. There are numerous crystals like this within the vuggy matrix. Note - the crystal photographed here is on the underside of the specimen close to where someone had stuck it to the plastic box with putty (I don't like this). Who knows how many other crystals were covered. There will be another Molybdofornacite on the Tsumeb update coming at the end of the month. It will be slightly better.

Molybdofornacite

Formula
CuPb2MoO4AsO4(OH) 
Crystal System
Monoclinic 
Crystal Habit
Pistolitic, Lath 
Cleavage
None, None, None 
Luster
Adamantine 
Color
light green 
Streak
yellow 
Class
Monoclinic - Prismatic 
Fracture
Conchoidal 
Hardness
2-3 

Data courtesy of Webmineral.

Collection
Phillips Collection

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