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Johannsenite

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ATH745195

Johannsenite

Description Tabs

Description
Locality: 
Madan, Smolyan Oblast, Bulgaria
Class: 
Massive/Crystalline
Size Range: 
Cabinet (10-18 cm)
Size: 
14 × 6.5 × 5 cm
Description

Johannsenite from Madan, Bulgaria.

From an old collection with that label (see last foto).

I searched several mineral databases, but found only two compareable reference specimens.

Maybe somebody has use for it - I don't need this specimen anyway.

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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