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ATHENA

MINERALOGY

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Mineral:SCHORL
Formula:NaFe2+3Al6(Si6O18)(BO3)3(OH)3OH
Crystal System:Rhomboedral (Trigonal)
Strunz Nr:8/E.19-50
Group:Tourmaline group Alkali subgroup
References:HB2/2 (1995); AM 96 (2011), 895

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