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MINERALOGY

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Mineral:JULGOLDITE-(Fe+++)
Formula:Ca2Fe3+(Fe3+,Al)2(SiO4)(Si2O7)(OH)2 · H2O
Crystal System:Monoclinic
Strunz Nr:8/C.24-68
Group:Pumpellyite group
References:CM 12 (1973), 219
Type Locality:Långban (Langban) mine, Bergslagen ore distr., Filipstad, Värmland (Wermland, Varmland), Sweden

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