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ATHENA

MINERALOGY

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Mineral:POVONDRAITE
Formula:NaFe3+3(Fe3+4Mg2)(Si6O18)(BO3)3(OH)3O
Crystal System:Rhomboedral (Trigonal)
Strunz Nr:8/E.19-75
Group:Tourmaline group Alkali subgroup
References:AM 64 (1979), 945; HB2/2 (1995); NM 90-94 (1997); AM 96 (2011), 895
Type Locality:San Francisco mine, Aranibar, Alto Chapare, Villa Tunari, Cochabamba, Bolivia

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