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Hilgardite-3Tc

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SKY1012943

Hilgardite-3Tc

Rare Mineral

Description Tabs

Description
Locality: 
Choctaw Salt Dome, Plaquemine, Iberville Parish, Louisiana, United States of America
Class: 
Single Crystal
Size Range: 
Micromount (under 1cm)
Size: 
0.15 × 0.15 × 0.15 cm
Description

A single crystal aggregate of the rare polytype of hilgardite, hilgardite-3Tc, from USA, labeled as the synonim parahilgardite in the plastic box.

Ex Vandenbroucke Museum collection from Waregem, Belgium.

Mineral Data
What's on the rock

Hilgardite-3Tc

Crystal System: 
Triclinic
Hardness: 
5
Colour: 
Colourless; colourless in transmitted light
Polytype Of: 

Hilgardite

Formula: 
Ca2B5O9Cl·H2O
Strunz: 
6.ED.05
Hardness: 
5.0

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