Owl - coll. P.P. ATHENA

MINERALOGY
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Mineral:VARENNESITE
Formula:Na8Mn2+2Si10O25(OH,Cl)2 · 12H2O
Crystal System:Orthorhombic
Strunz Nr:8/H.28-100
References:CM 33 (1995), 1073
Type Locality:Demix-Varennes quarry, Varennes, Verchères Co., Québec, Canada

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