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Manjiroite

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ESM577284

Manjiroite

Description Tabs

Description
Locality: 
Prompter Mine, Tombstone, Cochise County, Arizona, United States of America
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
3.5 × 6 × 4.5 cm
Description

Fibrous black manjiroite crystals in matrix

Mineral Data
What's on the rock

Manjiroite

Formula: 
Na(Mn4+7Mn3+)O16
Strunz: 
4.DK.05a
Hardness: 
7.0
Type Locality: 
Kohare mine, Karumai, Iwate Prefecture, Tohoku Region, Honshu Island, Japan