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0 item @ $0.00  

Bertrandite

#PD34045

Bertrandite

#PD34045
Availability
Sold
Size
3 x 6 x 3.5 cm - Sm Cabinet 
Formula
Be4Si2O7(OH)2 (RRUFF)
Locality
Biermann quarries, Fairfield Co., Connecticut, United States

White, thin prismatic Bertrandite microcrystals to <1mm lining the open 1-2cm cavities in pegmatite matrix.

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
Phillips Collection

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