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Nontronite

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SHS785658

Nontronite

Description Tabs

Description
Locality: 
Hoher Hagen, Dransfeld, Göttingen, Lower Saxony, Germany
Class: 
Massive/Crystalline
Size Range: 
Small cabinet (7-10 cm)
Size: 
9.5 × 7 × 2.2 cm
Description

Nice piece of nontronite in matrix

Mineral Data
What's on the rock

Nontronite

Formula: 
Na0.3Fe2((Si,Al)4O10)(OH)2·nH2O
Strunz: 
9.EC.40
Hardness: 
1.5 - 2.0
Type Locality: 
Saint-Pardoux-la-Rivière, Dordogne, Aquitaine, France