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Montmorillonite

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TPX1020653

Montmorillonite

Classic Locality

Description Tabs

Description
Locality: 
Montcada Hill Quarry , Montcada i Reixac, Vallès Occidental, Barcelona, Catalonia, Spain
Class: 
Massive/Crystalline
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.1 × 4.2 × 4 cm
Weight: 
50.00gr
Description

Very interesting specimen of green montmorillonite on matrix of this interesting phosphate found in this Spanish quarry.

Mineral Data
What's on the rock

Montmorillonite

Formula: 
(Na,Ca)0.33(Al,Mg)2(Si4O10)(OH)2·nH2O
Strunz: 
9.EC.40
Hardness: 
1.0 - 2.0
Streak: 
white
Type Locality: 
Montmorillon, Vienne, Poitou-Charentes, France

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