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MINERALOGY

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Mineral:PUMPELLYITE-(Fe++)
Formula:Ca2Fe2+Al2(SiO4)(Si2O7)(OH)2 · H2O
Crystal System:Monoclinic
Strunz Nr:8/C.24-40
Group:Pumpellyite group
References:AM 61 (1976), 176; AM 68 (1983), 1250; HB2/2 (1995)
Type Locality:Långban (Langban) mine, Bergslagen ore distr., Filipstad, Värmland (Wermland, Varmland), Sweden

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