China's nickel deposit type
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The types of nickel deposits in China are shown in Table 1 below:
Table 1 Types of nickel deposits in China
Deposit type
Surrounding rock type
The main metal minerals and gangue minerals
Example
Magma melt-dissolved copper- nickel deposit
The second olivine peridotite is the main, followed by the olivine pyroxenite, serpentinite , marble, etc.
Metallic minerals mainly pyrrhotite, pentlandite, chalcopyrite, pyrrhotite: pentlandite: Chalcopyrite about 2.59: 1: 0.5. The gangue minerals are olivine, pyroxene, tremolite , chlorite, carbonate, etc.
Jinchuan Nickel Mine Second Mining Area
Containing olivine peridotite and eutectic peridotite, followed by gabbro, chlorite schist, and feldspar
The metal minerals are mainly pyrite, purple sulfur nickel iron ore and chalcopyrite. The gangue minerals are olivine, pyroxene, serpentine, olivine, etc.
Jinchuan Nickel Mine First Mining Area
Oblique crest, altered metamorphic, sulphite and biotite gneiss
The main metal minerals are pyrrhotite, pentlandite, sulphur stellite, chalcopyrite and pyrite, and pyrrhotite: pentlandite: chalcopyrite is about 3.34:1:0.44. The gangue minerals are orthopyroxene, tremolite, talc , silicate, etc.
Panshi nickel ore