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Varennesite & Magadiite

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GMN572451

Varennesite & Magadiite

Description Tabs

Description
Locality: 
Demix-Varennes Quarry, Varennes & St-Amable, Montérégie, Québec, Canada
Class: 
Crystal Group/Cluster
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.5 × 2.5 × 1.5 cm
Description

Brown crystals of varennesite with white aggregates of silky balls of magadiite.

Mineral Data
What's on the rock

Varennesite

Formula: 
Na8Mn2Si10O25(OH,Cl)2·12H2O
Strunz: 
9.EE.50
Crystal System: 
Orthorhombic
Hardness: 
4.0
Streak: 
White
Type Locality: 
Demix-Varennes quarry, Saint-Amable sill, Varennes & St-Amable, Lajemmerais RCM, Montérégie, Québec, Canada

Magadiite

Formula: 
Na2Si14O29·11H2O
Strunz: 
9.EA.20
Hardness: 
2.0
Type Locality: 
Lake Magadi, South Rift Valley, Rift Valley Province, Kenya

Seller Information

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