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Shouwangfen Mine, Xinglong Co., Chengde Prefecture, Hebei Province, China

Medium-scale Fe-Cu-Co-(Au-Ag-Mo) skarn, hosted in the contact zone of Mesozoic granodiorite and Neoproterozoic dolomite of the Wumishan Formation. The orebodies are lenticular or lensoid in skarns, and stratiform in metasomatized dolomite. Seven zones occur along the contact: a granodiorite zone, an altered granodiorite zone, a garnet-epidote-vesuvianite skarn zone, a diopside zone, a magnetite-humite-diopside skarn zone, a wollastonite skarn zone and a serpentinite-altered dolomite zone. There are five types of ore mineral associations: (1) magnetite, (2) pyrite-bearing magnetite, (3) pyrrhotite and Co-bearing chalcopyrite, (4) pyrite-bearing chalcopyrite, and (5) veined chalcopyrite. The minerals occur in masses, disseminations, veins and veinlets, and display idiomorphic, xenomorphic, replacment and colloidal textures. Four skarn stages occur: (1) a scapolite stage with scapolite, wollastonite, vesuvianite, garnet and diopside; (2) a magnetite stage with magnetite, humite, phlogopite, sericite, tremolite and actinolite; (3) a quartz-sulphide stage with sulphides, chlorite and sericite; and (4) a carbonate stage with calcite and fluorite.

Ref.:
- Yanjing Chen, Huayong Chen, Khin Zaw, Pirajno, F., and Zengjie Zhang (2007): Geodynamic settings and tectonic model of skarn gold deposits in China: An overview. Ore Geology Reviews 31, 139-169.
- http://wrgis.wr.usgs.gov/open-file/of03-220/DATABASE/lode_deposits.txt





Map Reference: 40°45'N , 117°46'E

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Mineral List:
Actinolite
Bornite
Calcite
Chalcopyrite
'Chlorite Group'
Diopside
Dolomite
Epidote
Fluorite
Galena
'Garnet Group'
Hematite
Humite
Kaolinite
Magnetite
Malachite
Marcasite
Molybdenite
Phlogopite
Pyrite
Pyrrhotite
'Scapolite'
Scheelite
'Sericite'
Sphalerite
Tenorite
Tetrahedrite
Tremolite
Vesuvianite
Wollastonite


30 entries listed. 26 valid minerals.

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