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ATHENA

MINERALOGY

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Mineral:MUMMEITE
Formula:(Ag,Cu)9Pb2Bi13S26
Crystal System:Monoclinic
Strunz Nr:2/E.09-20
Group:Benjaminite group
References:NJMM (1992), 555; NM 90-94 (1997)
Type Locality:Alaska mine, San Juan Co., Colorado, USA

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