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Johannsenite

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GFM738613

Johannsenite

Description Tabs

Description
Locality: 
Sasa Mine, Probistip, North Macedonia
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.5 × 1.4 × 0.3 cm
Description

nice crystal clusters of bright brownish long prismatic crystals of 5 cm.  These are the largest crystals of this rare Calcium Manganese silicate I have ever seen. Outstanding specimens for the species

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