Moving mountains for you
Switch currency

Current Live Auctions

Current Live Fixed Price Sales

Barrerite & Laumontite

Views:
Watches:
MEX557769

Barrerite & Laumontite

Rare Mineral

Description Tabs

Description
Locality: 
Alaska, United States of America
Class: 
Crystals on Matrix
Size Range: 
Small cabinet (7-10 cm)
Size: 
9.9 × 4.1 × 3.1 cm
Weight: 
82.00gr
Description

Very nice specimen with well terminated barrerite crystals and smaller laumontie crystals.

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...

Laumontite

Formula: 
CaAl2Si4O12·4H2O
Strunz: 
9.GB.10
Hardness: 
3.5 - 4.0
Streak: 
White
Type Locality: 
Huelgoat (Locmaria-Berrien), Finistère, Brittany, France