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Yamansu Fe-(Cu) deposit, Hami (Kumul; Qumul) Co., Hami (Kumul; Qumul) Prefecture, Xinjiang (Xinjiang-Uygur) Autonomous Region, China

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Fe-(Cu) skarn, hosted in Lower Carboniferous submarine bimodal volcanic and clastic rocks of the Yamansu Formation, mainly consisting of andesitic tuff, andesitic tuff breccia, limestone, potash-keratophyre, potash-porphyritic felsite, and felsite in the vicinity of iron-rich mineralization. The skarns developed between limestone, which may be intercalated with andesitic breccia, tuff, agglomerate, basaltic andesite, and andesitic tuff, and rhyolitic tuff. A sub-volcanic, pyroxene-bearing diorite porphyry is present 500 m southwest of the orebodies, where the deposit area is cut by a northerly-trending fault. Although other granitoids are not exposed at the surface, a gravity survey indicates that an additional buried pluton may lie beneath the deposit area.

Ref.:
- Jingwen Mao, Goldfarb, R.J., Yitian Wang, Hart, C.J., Zhiliang Wang, and Jianmin Yang (2005): Late Paleozoic base and precious metal deposits, East Tianshan, Xinjiang, China: Characteristics and geodynamic setting. Episodes 28(1), 23-36.





Mineral List:
  		•  Actinolite
    ☐Ca
     
    2
    		(Mg,Fe
    2+
     
    		)
     
    5
    		(Si
     
    8
    		O
     
    22
    		)(OH)
     
    2
    Reference: [Jingwen Mao, Goldfarb, R.J., Yitian Wang, Hart, C.J., Zhiliang Wang, and Jianmin Yang (2005): Episodes 28(1), 23-36.]
  		•  Albite
    Na[AlSi
     
    3
    		O
     
    8
    		]
    Reference: [Jingwen Mao, Goldfarb, R.J., Yitian Wang, Hart, C.J., Zhiliang Wang, and Jianmin Yang (2005): Episodes 28(1), 23-36.]
  		•  Andradite
    Ca
     
    3
    		Fe
    3+
    2
    		[SiO
     
    4
    		]
     
    3
    Reference: [Jingwen Mao, Goldfarb, R.J., Yitian Wang, Hart, C.J., Zhiliang Wang, and Jianmin Yang (2005): Episodes 28(1), 23-36.]
  		•  Calcite
    CaCO
     
    3
    Reference: [Jingwen Mao, Goldfarb, R.J., Yitian Wang, Hart, C.J., Zhiliang Wang, and Jianmin Yang (2005): Episodes 28(1), 23-36.]
  		•  Chalcocite
    Cu
     
    2
    		S
    Reference: [Jingwen Mao, Goldfarb, R.J., Yitian Wang, Hart, C.J., Zhiliang Wang, and Jianmin Yang (2005): Episodes 28(1), 23-36.]
  		•  Chalcopyrite
    CuFeS
     
    2
    Reference: [Jingwen Mao, Goldfarb, R.J., Yitian Wang, Hart, C.J., Zhiliang Wang, and Jianmin Yang (2005): Episodes 28(1), 23-36.]
  		•  'Chlorite Group'
    Reference: [Jingwen Mao, Goldfarb, R.J., Yitian Wang, Hart, C.J., Zhiliang Wang, and Jianmin Yang (2005): Episodes 28(1), 23-36.]
  		•  Diopside
    CaMg[Si
     
    2
    		O
     
    6
    		]
    Reference: [Jingwen Mao, Goldfarb, R.J., Yitian Wang, Hart, C.J., Zhiliang Wang, and Jianmin Yang (2005): Episodes 28(1), 23-36.]
  		•  Epidote
    {Ca
     
    2
    		}{Al
     
    2
    		Fe
    3+
     
    		}[O|OH|SiO
     
    4
    		|Si
     
    2
    		O
     
    7
    		]
    Reference: [Jingwen Mao, Goldfarb, R.J., Yitian Wang, Hart, C.J., Zhiliang Wang, and Jianmin Yang (2005): Episodes 28(1), 23-36.]
  		•  Hedenbergite
    CaFe
    2+
     
    		[Si
     
    2
    		O
     
    6
    		]
    Reference: [Jingwen Mao, Goldfarb, R.J., Yitian Wang, Hart, C.J., Zhiliang Wang, and Jianmin Yang (2005): Episodes 28(1), 23-36.]
  		•  Hematite
    Fe
     
    2
    		O
     
    3
    Reference: [Jingwen Mao, Goldfarb, R.J., Yitian Wang, Hart, C.J., Zhiliang Wang, and Jianmin Yang (2005): Episodes 28(1), 23-36.]
  		•  Magnetite
    Fe
    2+
     
    		Fe
    3+
    2
    		O
     
    4
    Reference: [Jingwen Mao, Goldfarb, R.J., Yitian Wang, Hart, C.J., Zhiliang Wang, and Jianmin Yang (2005): Episodes 28(1), 23-36.]
  		•  Pyrite
    FeS
     
    2
    Reference: [Jingwen Mao, Goldfarb, R.J., Yitian Wang, Hart, C.J., Zhiliang Wang, and Jianmin Yang (2005): Episodes 28(1), 23-36.]
  		•  Quartz
    SiO
     
    2
    Reference: [Jingwen Mao, Goldfarb, R.J., Yitian Wang, Hart, C.J., Zhiliang Wang, and Jianmin Yang (2005): Episodes 28(1), 23-36.]
  		•  'Sericite'
    Reference: [Jingwen Mao, Goldfarb, R.J., Yitian Wang, Hart, C.J., Zhiliang Wang, and Jianmin Yang (2005): Episodes 28(1), 23-36.]
  		•  Vesuvianite
    Ca
     
    10
    		(Mg,Fe)
     
    2
    		Al
     
    4
    		Si
     
    9
    		O
     
    34
    		(OH)
     
    4
    Reference: [Jingwen Mao, Goldfarb, R.J., Yitian Wang, Hart, C.J., Zhiliang Wang, and Jianmin Yang (2005): Episodes 28(1), 23-36.]


    16 entries listed. 14 valid minerals.

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