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Jimboite

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CAM144585

Jimboite

Description Tabs

Description
Locality: 
Rito Mine, Seta, Midori City, Gunma Prefecture, Honshu Island, Japan
Size Range: 
Thumbnail (1-3cm)
Size: 
2.2 × 2 × 0.7 cm
Description

A nice example of the rare manganese-magnesium-borate jimboite as dark brown veins, grains and masses in a lighter pinkish brown rhodochrosite matrix (with possible some galaxite).

Mineral Data
What's on the rock

Jimboite

Formula: 
(Mn2+,Mg)3[BO3]2
Strunz: 
6.AA.35
Hardness: 
5.5
Type Locality: 
Kaso Mine, Kanuma City, Tochigi Prefecture, Kanto Region, Honshu Island, Japan
Cartils Minerals

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