Owl - coll. P.P. ATHENA

MINERALOGY
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Mineral:BENSTONITE
Formula:(Ba,Sr)6(Ca,Mn)6Mg(CO3)13
Crystal System:Rhomboedral (Trigonal)
Strunz Nr:5/B.03-80
References:MR 1 (1970), 140; HB5 (2003)
Type Locality:National Lead Company, Baroid Division pit, Hot Spring Co., Arkansas, USA

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