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Julgoldite-(Fe3+)

Type Locality
Långban, Filipstad, Värmland, Sweden
Mineral Data
Ca2(Fe3+,Mg)(Fe3+,Al)2(Si2O7)(SiO4)(OH,O)2·H2O
Strunz: 
9.BG.20
Physical Properties
Crystal System: 
Monoclinic
Hardness: 
4.5