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Johannsenite

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SYA520018

Johannsenite

ex David Shannon

Description Tabs

Description
Locality: 
Iron Cap Mine, Black Peak area, Graham County, Arizona, United States of America
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4 × 4 × 3 cm
Description

A good coverage of green-grey crystals and massive johannsenite on matrix.

An older specimen from David Shannon with his label.

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
Labels
Label Images - only: Johannsenite

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