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Formula: Pt3In
Alloy of platinum and indium
Crystal System: Isometric
Specific gravity: 18.21 calculated
Hardness: 6
Streak: Black
Colour: Steel-black
Solubility: Insoluble in nitric acid, hydrochloric acid or H3PO4
Magnetism: Not magnetic
Environments
Metamorphic environments
Hydrothermal environments
Occurrence:
Localities
At the type locality, the PGE (platinum group element) occurrence,
Damiao complex, Luanping County, Chengde, Hebei, China, yixunite occurs Intimately associated with
damiaoite. They occur as globules (product of complexes in hydrothermal
solution), 1-2 mm across, in the contact-metamorphosed garnet -
hornblende - pyroxenite
in contact with anorthosite and
granite. Associated minerals include
almandine, hornblende,
diopside, augite,
plagioclase, titanite,
apatite, chalcopyrite,
bornite, magnetite,
covellite, carrollite,
goethite, columbite,
cooperite, sperrylite,
moncheite, and other new minerals
fengluanite, dayingite,
kotulskite and daomanite
(AM 61.185-186, HOM, Mindat).
Yixunite from Damiao - Image
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