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Hydroboracite

#DP34738
SOLD
Hydroboracite from Nordhausen, Harz, Thuringia, Germany - DP34738
Hydroboracite from Nordhausen, Harz, Thuringia, Germany - DP34738

Hydroboracite

#DP34738
Availability
Sold
Size
4.5 x 5 x 3 cm - Miniature 
Formula
CaMg[B3O4(OH)3]2·3H2O (RRUFF)
Locality
Nordhausen, Harz, Thuringia, Germany
Tagged
borate

Thin white-colorless crystals of Hydroboracite in divergent fans on Anhydrite.

Hydroboracite

Formula
CaMg[B3O4(OH)3]2·3H2O 
Crystal System
Monoclinic 
Crystal Habit
Fibrous, Foliated 
Cleavage
Perfect, None, None 
Luster
Vitreous - Silky 
Color
colorless, greenish, white, light brown, wine yellow 
Streak
white 
Class
Monoclinic - Prismatic 
Hardness
2 

Data courtesy of Webmineral.

Collection
Phillips Collection
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