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Johannsenite

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ESM618397

Johannsenite

Description Tabs

Description
Locality: 
North Mine, Broken Hill, Yancowinna County, New South Wales, Australia
Class: 
Crystal Group/Cluster
Size Range: 
Thumbnail (1-3cm)
Size: 
2 × 2.5 × 2.2 cm
Description

Blocky olive-green johannsenite crystals

Mineral Data
What's on the rock

Johannsenite

Formula: 
CaMn2+Si2O6
Group Parent: 
Clinopyroxene Subgroup
Strunz: 
9.DA.15
Hardness: 
6.0
Streak: 
white
Type Locality: 
Franklin Mine, Franklin, Franklin Mining District, Sussex Co., New Jersey, USA