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Forsterite

Type Locality
Monte Somma, Somma-Vesuvius Complex, Naples Province, Campania, Italy
Mineral Data
Mg2SiO4
Strunz: 
9.AC.05
Physical Properties
Crystal System: 
Orthorhombic
Streak: 
White
Hardness: 
7.0
Tenacity: 
brittle
Synonyms
Synonyms: 
Forsterita