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Magnetite is the ore of the oxide mineral magnetite, mostly granular aggregates, streaks of black, semi-metallic luster, opaque, non-dissolving, hardness 5.5-6.5. density 5.16-5.18g/cm3, with strong magnetic properties. Brittle, odourless, tasteless, p
Hematite is the main mineral form of iron oxide, from which iron is mainly smelted, and although, gradually, other metals are taking the place of iron, iron is still the most important metal. Therefore, hematite is one of the most economically importan
Lead is a metallic element, it is a heavy silver-white metal with blue, melting point 327.502 ° C, boiling point 1740 ° C, density 11.3437 grams / cubic centimetre, specific heat capacity of 0.13 kJ / (kg - K), Moh's hardness of 1.5, the texture
Calcite is a calcium carbonate mineral, belongs to metamorphic rock, the main chemical composition is calcium carbonate, because knocking calcite will get a lot of square pieces, so it is called calcite. Calcite comes in a variety of shapes, including
Silver ore mainly refers to the ore containing the main metal silver and other metal impurities, there are more than 200 kinds of, of which silver is the main element of silver minerals and silver-bearing minerals have more than 60 kinds, but has impor
Tungsten ore contains low tungsten content, must be enriched into concentrates through beneficiation to be used as raw materials for smelting, according to the type of ore tungsten beneficiation is divided into two major types of wolframite beneficiati
Manganese is widely distributed in nature and is found in almost all kinds of ores and silicate rocks. The more common manganese ores are anhydrous and aqueous manganese oxide and manganese carbonate, of which the most important and economically valuab
Cobalt Ore CharacteristicsChina's cobalt metal resources are about 1.4 million tonnes, the vast majority of which are associated resources, and there are very few separate cobalt deposits. Cobalt is a kind of magnetic hard metal with high me
Characteristics of mercury oresMercury is widely distributed in nature, and according to the industrial and technical requirements of the ore, the industrial types of mercury ores are divided into ore types according to the useful mineral compon
Chrome ore exists in nature mainly in the form of chromite FeCr2O4, chromite is an isometric crystal system, the crystal is a fine octahedron, usually granular and dense massive aggregates, black in colour, streak brown, semi-metallic luster, hardness
