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Cryptomelane & Lithiophorite

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PDM873708

Cryptomelane & Lithiophorite

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Description
Locality: 
Fernán Caballero, Ciudad Real, Castilla La Mancha, Spain
Class: 
Crystal Group/Cluster
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.6 × 3.9 × 3.1 cm
Weight: 
50.00gr
Description

Finger-like growths of black lustrous banded cryptomelane-lithiophorite with minor calcite matrix.

Self-collected in 2015 in an old Mn mine near the locality of Fernán Caballero.

Combine specimens to reduce shipping costs!.

Mineral Data
What's on the rock

Cryptomelane

Formula: 
K(Mn4+7Mn3+)O16
Strunz: 
4.DK.05a
Crystal System: 
Tetragonal
Hardness: 
5.0 - 6.5
Type Locality: 
Tombstone, Tombstone District, Tombstone Hills, Cochise Co., Arizona, USA

Lithiophorite

Formula: 
(Al,Li)MnO2(OH)2
Strunz: 
4.FE.25
Crystal System: 
Monoclinic
Hardness: 
3.0
Type Locality: 
Spitzleithe, Schneeberg District, Erzgebirge, Saxony, Germany

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