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0 item @ $0.00  

Hilgardite

#PD33268

Hilgardite

#PD33268
Availability
Sold
Size
2.5 x 1 x 1 cm - Thumbnail 
Formula
Ca2B5O9Cl·H2O (RRUFF)
Locality
Boulby Potash mine, Loftus, Cleveland, England

Pink platy crystals of Hilgardite to <1mm on pale greenish-blue cubes of Boracite in spherical clusters to 4mm.

Hilgardite

Formula
Ca2B5O9Cl·H2
Crystal System
Triclinic 
Cleavage
Perfect, Perfect, None 
Luster
Vitreous (Glassy) 
Color
colorless 
Streak
white 
Class
Triclinic - Pedial 
Hardness

Data courtesy of Webmineral.

Collection
Phillips Collection

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