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Mangano-ferri-eckermannite

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SER726185

Mangano-ferri-eckermannite

Type Locality

Description Tabs

Description
Locality: 
Tanohata Mine, Iwate Prefecture, Honshu Island, Japan
Class: 
Massive/Crystalline
Size Range: 
Thumbnail (1-3cm)
Size: 
1.7 × 1 × 0.6 cm
Description

Black massive mangano ferri eckermannite from the type locality

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