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Formula: Pb8Mg9[Si10O28(OH)8O2(CO)3].H2O
Unclassified silicate
Crystal System: Monoclinic
Specific gravity: 4.652 calculated
Hardness: 3 to 4
Streak: White
Colour: Colourless, pale grey, pale yellow, very pale green
Common impurities: Al,Na,K,H2O
Environments
Localities
At the type locality, the Långban Mine, Långban Ore District, Filipstad, Värmland County, Sweden,
molybdophyllite occurs in skarns in granular
limestone or
dolostone, associated with
hausmannite, calcite,
rhodonite and garnet
(HOM)
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