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Tyuyamunite & Sepiolite

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TPX1131938

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Description
Locality: 
Cerro de la Tarta, Rivas Vaciamadrid, Madrid, Spain
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.7 × 3.8 × 3.8 cm
Weight: 
65.00gr
Description

Very interesting recently discovered specimen of Tyuyamunite on pyrolusite over a sepiolite matrix.

 

Mineral Data
What's on the rock

Tyuyamunite

Formula: 
Ca(UO2)2(VO4)2·5-8H2O
Strunz: 
4.HB.25
Hardness: 
1.5 - 2.0
Type Locality: 
Tyuya-Muyun Cu-V-U deposit (Radium Mine), Alai Range (Alay Range), Osh Oblast, Kyrgyzstan

Sepiolite

Formula: 
Mg4(Si6O15)(OH)2·6H2O
Strunz: 
9.EE.25
Hardness: 
2.0
Streak: 
White
Type Locality: 
Bettolino, Baldissero Canavese, Canavese District, Torino Province, Piedmont, Italy

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Start 10 Dec 18:00
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Spain
9
Europe
13.80
Rest of world
18.50

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