Moving mountains for you
Switch currency

Current Live Auctions

Current Live Fixed Price Sales

Tephroite

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