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Ganophyllite With Braunite

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SCH26016

Ganophyllite With Braunite

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Description
Locality: 
Molinello Mine, Ne, Graveglia Valley, Genova Province, Liguria, Italy
Size Range: 
Miniature (4.5-7 cm)
Size: 
4.5 × 2.8 × 1 cm
Description

Masses and rosettes of light brown pinkish crystals in quartz with dull black braunite

Mineral Data
What's on the rock

Ganophyllite

Formula: 
(K,Na,Ca)2Mn8(Si,Al)12(O,OH)32·8H2O
Strunz: 
9.EG.30
Hardness: 
4.0 - 4.5
Type Locality: 
Harstigen Mine, Pajsberg, Persberg district, Filipstad, Värmland, Sweden

Braunite

Formula: 
Mn2+Mn3+6(SiO4)O8
Strunz: 
9.AG.05
Hardness: 
6.0 - 6.5
Streak: 
Black
Type Locality: 
Oehrenstock (Öhrenstock), Langewiesen, Ilmenau District, Thuringian Forest, Thuringia, Germany
schani

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