China's copper deposit type

Deposit name

Surrounding rock type

The main metal minerals and gangue minerals

Example

Porphyry copper deposit

Acidic or porphyry or phyllite (of sericite, chlorite silicide)

The metal minerals are mainly chalcopyrite and molybdenite , followed by porphyrite, azurite, malachite and beryllium. Non-metallic minerals are mainly quartz and sericite. The main component is associated beneficial pyrite, molybdenite, gold, silver, etc.

Jiangxi Dexing Copper Mine

Shanxi Zhongtiaoshan Copper Mine

Layered copper ore

Dolomite or dolomitic limestone (silicification, dolomitization, chlorite)

The metal mineral oxidation zone is mainly composed of malachite and azurite. The secondary enrichment zone is mainly composed of chalcopyrite and porphyrite. The primary zone is mainly chalcopyrite and pyrite. The gangue is mainly composed of quartz and carbonate.

Yunnan Yimen Copper Mine

Skarn copper mine

Mostly acidic or acidic igneous rocks and carbonate rocks

The main metal minerals are mainly chalcopyrite and pyrite, with a small amount of porphyrite and magnetite. The gangue minerals are garnet , diopside , sericite, chlorite

Anhui Tongshan Copper Mine, Fenghuangshan Copper Mine, Shizishan Copper Mine, Hubei Fengshan Copper Mine

Copper-bearing pyrite

Fine-bijiao porphyry (green mud, petrochemical, silicified)

The metal mineral oxidation zone is mainly composed of malachite and azurite. The secondary enrichment zone is mainly composed of chalcopyrite, and the primary zone is mainly pyrite and chalcopyrite. The gangue minerals are mainly quartz, sericite, calcite and gypsum . Associated beneficial ingredients are pyrite, lead , zinc , gold, silver, etc.

Gansu Baiyinchang Copper Mine

Jiangxi Wushan Copper Mine