What is a mineral made of?
Ores are usually composed of ore minerals and gangue minerals. Ore minerals are metals or nonmetallic minerals that can be used in ores and are also known as useful minerals. Such as chromite in chromium ore, ore, chalcopyrite, bornite, chalcocite and malachite in asbestos asbestos ore.
The fraction of ore minerals and gangue minerals contained in ores varies with different metal ores. In the same ore, it also varies with the rich and poor grades of the ore.. In many metal ores, the amount of gangue minerals is often much larger than that of ore minerals. Therefore, the ore before smelting, must be beneficiation, abandoned most of the useless material to smelting.
. Gangue minerals are minerals that are not available for ore minerals, and are also called useless minerals. Such as chromium ore olivine, pyroxene, copper ore in quartz, sericite, chlorite, asbestos, dolomite and calcite in the ore. Gangue minerals are mainly non-metallic minerals, but also include some metal minerals, such as copper ore containing very little galena and sphalerite, because of the lack of comprehensive utilization value, also known as gangue minerals.
