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Macdonaldite

#REW60372

Macdonaldite

#REW60372
Availability
Sold
Size
2.4 x 2 x 2 cm - Thumbnail 
Formula
BaCa4Si16O36(OH)2·10H2O (RRUFF)
Locality
Esquire #1 claim, Rush Creek, Fresno Co., California, United States
Tagged
Ba Silicates , barium

This is the best Macdonaldite in my stock. A rich specimen full of acicular radiating crystal groups to 2mm across. Macdonaldite is found in only one locality outside of California.

Type Locality

Macdonaldite

Formula
BaCa4Si16O36(OH)2·10H2
Crystal System
Orthorhombic 
Crystal Habit
Acicular 
Cleavage
Perfect, Good, Indistinct 
Luster
Vitreous - Silky 
Color
colorless, white 
Streak
white 
Class
Orthorhombic - Dipyramidal 
Hardness
3.5-4 

Data courtesy of Webmineral.

Collection
Robert E. Walstrom collection
Special Info
Type Locality

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