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0 item @ $0.00  

Bertrandite with Pyrite

#52610

Bertrandite with Pyrite

#52610
Availability
Sold
Size
2.5 x 2 x 1.5 cm - Thumbnail 
Formula
Be4Si2O7(OH)2 (RRUFF)
Locality
Kara-Oba W deposit, Betpakdala Desert, Karagandy, Kazakhstan
Tagged
beryllium , pegmatite mineral

Large crystal blades of Bertrandite to 2.5cm!

Bertrandite

Formula
Be4Si2O7(OH)2 
Crystal System
Orthorhombic 
Crystal Habit
Crystalline - Fine, Tabular, Prismatic 
Cleavage
Perfect, Distinct, Distinct 
Luster
Vitreous (Glassy) 
Color
colorless, pale yellow 
Streak
white 
Class
Orthorhombic - Pyramidal 
Fracture
Brittle 
Hardness
6-7 

Data courtesy of Webmineral.

Collection
Barbara Cureton Collection

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