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ATHENA

MINERALOGY

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Mineral: TEPHROITE
Formula: Mn2+2SiO4
Crystal System: Orthorhombic
Group: Olivine group
IMA Number: 1823
References: HB2/2 (1995); MM 62 (1998, 607
Type Locality: Sterling Hill mine, Ogdensburg, Sussex Co., New Jersey, USA

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