What are ore minerals?
What are ore minerals?
- Iron ore and non-ferrous metal ores belong to ore minerals. For the production of copper, mainly copper pyrite is used, for production of aluminum bauxite, lead lead gloss, zinc zinc blende. There are ores in which several metals are simultaneously contained, for example, copper, zinc, lead, tin, etc. Such ores are called polymetallic (poly in the Greek means a lot).
Almost all the ores were formed in the incandescent depths of the planet. The first place in terms of extraction and importance, of course, belongs to iron ore, from which iron and steel are obtained.
It turns out that everything that we call iron is alloys. Iron in its pure form is not used anywhere for two reasons. First, it is very difficult to obtain pure iron. Secondly, pure iron is soft, heavy, not enough for what a suitable metal. Thanks to additives to the iron of some metals, it becomes 8-10 times stronger. Depending on the additives, alloys acquire different properties. In order to melt, for example, stainless steel, steelworkers add a bit of nickel and chrome. Usually, steel -50С become brittle when it's cold, because of which parts of machines and mechanisms break down.
If you add a little cesium during melting in steel, the steel remains strong in the most severe frosts.
Iron and its alloys are called black metals; copper, aluminum, lead, zinc, tin and some other non-ferrous metals.
- These minerals (iron, aluminum, chromite, lead, zinc, cobalt, molybdenum ores, etc.) form various deposits in the republic.
- from them they extract metal
- ORE MINERAL RESOURCES Fossil minerals are usually accompanied by foundations and protrusions (shields) of ancient platforms, as well as folded areas. In such areas they often form vast ore (metallogenic) belts, bound by their origin with deep faults in the earth's crust. The territories of such belts (Alpine-Himalayan, Pacific) serve as raw materials for the mining and metallurgical industries, often determining the economic specialization of individual regions and even entire countries.
The CIS countries (110 billion tons), the second - the countries of foreign Asia (68), the third and the fourth divide Africa and Latin America (according to 60), the fifth is North America (50), on the fifth sixth - Australia (25) and the seventh - foreign Europe (20). Among the CIS countries, Russia and Ukraine are particularly notable for this indicator, China (40) and India (20) among countries of foreign countries, Brazil (50) among countries of Latin America, and in North America, the USA and Canada have approximately equal iron ore resources (by 25 billion tons).