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Chromo-alumino-povondraite

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SHS127993

Chromo-alumino-povondraite

Description Tabs

Description
Locality: 
American #1 Talc Mine, Balmat, St Lawrence County, New York, United States of America
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.5 × 3.8 × 2.8 cm
Description

Nice chromoaluminopovondraite in matrix

Mineral Data
What's on the rock

Chromo-alumino-povondraite

Formula: 
Na(Cr3)(Al4Mg2)(Si6O18)(BO3)3(OH)3O
Strunz: 
9.CK.05
Hardness: 
7.5 - 0.0
Colour: 
Green
Type Locality: 
Pereval Marble Quarry, Slyudyanka (Sludyanka), Lake Baikal area, Irkutskaya Oblast', Prebaikalia (Pribaikal'e), Eastern-Siberian Region, Russia...