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Barrerite

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QRI942805

Barrerite

Rare Mineral

Description Tabs

Description
Locality: 
Rocky Pass, Kuiu Island, Alaska, United States of America
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
8 × 6.3 × 1.2 cm
Largest Crystal: 
0.70cm
Weight: 
72.00gr
Description

Rich drusy consisting of dozens of white tabular barrerite crystals intimately aggregated to one another, with a few outstanding individuals that are prone for photography.

Quite rich and photogenic, this is an oldtimer! One of my best ever barrerites!

Boxed with Label
Mineral Data
What's on the rock

Barrerite

Formula: 
(Na,K,Ca0.5)2[Al2Si7O18]·7H2O
Strunz: 
9.GE.15
Crystal System: 
Orthorhombic
Hardness: 
3.0 - 4.0
Streak: 
White
Type Locality: 
Sant' Efisio Tower, Nora, Pula, Cagliari Province, Sardinia, Italy...

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