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Manganbabingtonite On Johannsenite

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HCH218730

Manganbabingtonite On Johannsenite

Description Tabs

Description
Locality: 
Iron Cap Mine, Black Peak area, Graham County, Arizona, United States of America
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4 × 3 × 2 cm
Largest Crystal: 
0.20cm
Description

Black tabulare crystals of Manganbabingtonite up to 2 mm large are sitting on greenish Johannsenite.

Mineral Data
What's on the rock

Manganbabingtonite

Formula: 
Ca2(Mn,Fe)FeSi5O14(OH)
Strunz: 
9.DK.05
Hardness: 
5.5 - 6.0
Type Locality: 
Rudnyi Kaskad deposit, Krasnokamensk ore field, Kuragin District, Sayan Mts, Krasnoyarsk Territory (Krasnoyarsk Kray; Krasnoyarskii Krai), Eastern-Siberian Region, Russia

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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