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Tephroite

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CFL678672

Tephroite

Description Tabs

Description
Locality: 
Kaso Mine, Kanuma City, Tochigi Prefecture, Honshu Island, Japan
Class: 
Massive/Crystalline
Size Range: 
Thumbnail (1-3cm)
Size: 
2.8 × 2.5 × 2 cm
Weight: 
20.00gr
Description

Specimen of tephroite in matrix.

Mineral Data
What's on the rock

Tephroite

Formula: 
Mn2+2SiO4
Strunz: 
9.AC.05
Crystal System: 
Orthorhombic Forms short prismatic crystals.
Hardness: 
6.0
Streak: 
Pale gray
Type Locality: 
Sterling Mine, Sterling Hill, Ogdensburg, Franklin Mining District, Sussex Co., New Jersey, USA

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