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Nontronite

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MNR847669

Nontronite

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Description
Locality: 
Herľany, Košice County, Košice Region, Slovakia (Slovak Republic)
Class: 
Massive/Crystalline
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.5 × 5 × 2.5 cm
Description

Green-yellow Nontronite sample from Herľany opal deposit.

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

Current price

Starting price

10
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Start 03 May 18:00
End
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Shipping Information

Postage Area Price
Slovakia
8
Europe
15
Rest of the World
18

Bid History

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