- Silver is commonly extracted from ore by smelting or chemical leaching. Silver mining is the resource extraction of silver by mining. Silver ore beneficiation first choice is large capacity magnetic separation, followed by is electrostatic separation, and then re-election, and the minimum is flotation.
- Magnetite ore is a significant ore of iron, it is black or brownish-black with a metallic luster, has a Mohs hardness of 5–6 and a black streak. Magnetite ore beneficiation process is divided into crushing, grinding, classification, magnetic separation, dry tailings discharge, three phases.
- Lead and zinc ore is the metal-rich mineral elements such as lead and zinc, blue gray, hardness 1.5, it is the most soft metals, lead is one of the earlier extracted in history, lead and zinc are widely used in various of areas.
- Copper ore, hardness of 3-4, copper ore after smelting commission becomes refined copper and copper products. Concentrate copper ore species
- Gold occurs principally as a native metal, usually alloyed to a greater or lesser extent with silver, or sometimes with mercury. Native gold occur as sizeable nuggets,
- Iron ore is an important raw material of steel producers.After crushing, grinding, magnetic separation, flotation, re-election and other procedures,natural minerals
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