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Tephroite

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SMM637428

Tephroite

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Description
Locality: 
Gambatesa Mine, Reppia, Genova, Liguria, Italy
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2.5 × 2.5 × 2 cm
Description

There are, more, partially shaped, brownish, glassy crystals of tephroite on  one side of the rhodonite matrix.

Boxed with Label
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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