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0 item @ $0.00  

Bertrandite

#PD37895

Bertrandite

#PD37895
Availability
Sold
Size
4.5 x 3 x 2 cm - Miniature 
Formula
Be4Si2O7(OH)2 (RRUFF)
Locality
Golconda pegmatite, Governador Valadares, Doce valley, Minas Gerais, Brazil
Tagged
beryllium

Colorless, sharp and well-defined orthorhombic crystals to maybe 0.75mm composing of the entire mass of this specimen.

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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