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Mangano-ferri-eckermannite

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SYA750138

Mangano-ferri-eckermannite

Type Locality

Description Tabs

Description
Locality: 
Tanohata Mine, Iwate Prefecture, Honshu Island, Japan
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3 × 2 × 1.2 cm
Description

Small lustrous red-black crystals of mangano-ferri-eckermannite ( kozulite ), rich in grey manganese ore matrix.

Mineral Data
What's on the rock

Mangano-ferri-eckermannite

Formula: 
[Na][Na2][Mn2+4(Fe3+)]Si8O22(OH)2
Strunz: 
9.DE.25
Crystal System: 
Monoclinic
Hardness: 
5.0
Type Locality: 
Tanohata mine, Shimohei-gun, Iwate Prefecture, Tohoku Region, Honshu Island, Japan

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