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Johannsenite

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RHT669934

Johannsenite

Type Locality

Description Tabs

Description
Locality: 
Temperino Mine, Campiglia Marittima, Livorno Province, Tuscany, Italy
Class: 
Massive/Crystalline
Size Range: 
Thumbnail (1-3cm)
Size: 
2.2 × 1.4 × 1.4 cm
Weight: 
6.00gr
Description

Pretty good sample of johannsenite from the type locality.

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
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