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Johannsenite & Axinite-(Mn)

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CAM67859

Johannsenite & Axinite-(Mn)

Description Tabs

Description
Locality: 
Iron Cap Mine, Black Peak, Gila County, Arizona, United States of America
Size Range: 
Cabinet (10-18 cm)
Size: 
11 × 6.5 × 3.5 cm
Description

A coverage of prismatic johannsenite crystals associated with greenish tabular manganaxinite 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

Axinite-(Mn)

Formula: 
Ca2Mn2+Al2BSi4O15(OH)
Strunz: 
9.BD.20
Hardness: 
6.5 - 7.0
Streak: 
White
Type Locality: 
Harz, Lower Saxony, Germany
Cartils Minerals

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