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ATHENA

MINERALOGY

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Mineral:ESPERANZAITE
Formula:NaCa2Al2(As5+O4)2F4(OH) · H2O
Crystal System:Monoclinic
Strunz Nr:7/D.25-38
References:CM 37 (1999), 67; HB4 (2000); AM 85 (2000), 263; MR 31 (2000), 365
Type Locality:La Esperanza tin mine, Zaragoza, Durango, Mexico

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