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Hilgardite

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SMM585678

Hilgardite

Description Tabs

Description
Locality: 
Boulby Mine, Loftus, North Yorkshire, United Kingdom
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2.5 × 2 × 1.5 cm
Description

Some groups of pale orange crystals of hilgardite, on top of boracite tiny crystals, from a classic English locality for this mineral.

Boxed with Label
Mineral Data
What's on the rock

Hilgardite

Formula: 
Ca2B5O9Cl·H2O
Strunz: 
6.ED.05
Hardness: 
5.0
Streak: 
White
Type Locality: 
Choctaw Salt Dome (Bayou Choctaw Salt Dome), Plaquemine, Iberville Parish, Louisiana, USA

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