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Johannsenite & Inesite

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SHS101580

Johannsenite & Inesite

Description Tabs

Description
Locality: 
Yugashima Mine, Amagi-Yugashima, Shizuoka Prefecture, Honshu Island, Japan
Size Range: 
Miniature (4.5-7 cm)
Size: 
6 × 5 × 3.3 cm
Description

Johannsenite and inesite in matrix, old piece with japanese 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

Inesite

Formula: 
Ca2(Mn,Fe)7Si10O28(OH)2·5H2O
Strunz: 
9.DL.05
Hardness: 
5.5 - 6.0
Streak: 
White
Type Locality: 
Hilfe Gottes Mine, Oberscheld, Dillenburg, Dillenburg District, Hesse, Germany
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