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Masutomilite

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ESM544104

Masutomilite

Rare Mineral

Description Tabs

Description
Locality: 
Tawara, Hirukawa, Nakatsugawa City, Gifu Prefecture, Honshu Island, Japan
Class: 
Crystal Group/Cluster
Size Range: 
Small miniature (3-4.5 cm)
Size: 
2.1 × 4.4 × 0.1 cm
Description

Slice of light brown masutomilite

Mineral Data
What's on the rock

Masutomilite

Formula: 
(K,Rb)(Li,Mn3+,Al)3(AlSi3O10)(F,OH)2
Strunz: 
9.EC.20
Hardness: 
2.5
Type Locality: 
Tanakami-yama (Tanokami-yama), Otsu City, Shiga Prefecture, Kinki Region, Honshu Island, Japan