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ATHENA

MINERALOGY

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Mineral:HYDROUGRANDITE = Discredited
Formula:(Ca,Mg,Fe2+)3(Fe3+,Al)2(SiO4)3-x(OH)4x (?)
Crystal System:Cubic
Strunz Nr:8/A.08-100
References:MM 36 (1967), 133; AM 98 (2013), 785

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