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Shuangfeng village, Xinglong Co., Chengde Prefecture, Hebei Province, China

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Chromite placers, related to a primary chromite deposit in the Malan river valley.
Located near Shuangfeng village.



References:
- Yu Zuxiang (1981): A restudy of malanite and cobalt-malanite (dayingite). Geological Review 27, 55-71 (in Chinese with English abstract).
- Yu Zuxiang (1994): Shuangfengite: a new iridium bitelluride. Acta Mineralogica Sinica 14(4), 322-326 (in Chinese with English abstract).
- Yu Zuxiang (1996): Malanite - a new cupric platinum (Pt3+) and iridium (Ir3+) sulfide. Acta Geologica Sinica 70(4), 309-314 (in chinese with English abstract).




Group 1 - Elements
  		• Iridium
    var: Osmiridium    		1.AF.10
    (Ir,Os,Ru)
  		• Platinum
    var: Ferroan Platinum    		1.AF.10
    (Pt,Fe)
    Group 2 - Sulphides and Sulfosalts
  		• Cooperite2.CC.35b
    (Pt,Pd,Ni)S
  		• Malanite (TL)2.DA.05
    Cu(Pt
    3+
     
    		,Ir
    3+
     
    		)
     
    2
    		S
     
    4
  		• Moncheite2.EA.20
    (Pt,Pd)(Te,Bi)
     
    2
  		• Shuangfengite (TL)2.EA.20
    IrTe
     
    2
  		• Sperrylite2.EB.05a
    PtAs
     
    2
    Group 4 - Oxides and Hydroxides
  		• Chromite4.BB.05
    FeCr
     
    2
    		O
     
    4
    Unclassified Minerals
  		• 'Olivine'-
    (Mg,Fe
    2+
     
    		)
     
    2
    		[SiO
     
    4
    		]


    9 entries listed. 8 valid minerals.

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