The main problem is that they are often in dispersed condition and cannot be collected in concentrated form
. Therefore their economical exploitation seems nearly impossible. Some of the well known minerals are iron, silicone, gadolinite and yttrium.
Rare Minerals are considered for many reasons. Since they cannot always be collected in concentrated forms they also cannot be exploited that much for economical reasons. Therefore they are often mixed with other elements and sold in the market. Most of the contain either cerium or yttrium. The minerals that contain cerium are monazite, allanite, loparite etc. They also contain light lanthanides. The minerals that contain yttrium are xelotime, gadolinite, euxenite etc. These rare minerals are often found together in the earths crust and have quite a good deposit in almost all the countries around the world.
China rare earth depicts the complete deposit in China that happens to be quite a good amount. China has a number of mines where the minerals are extracted from and are used in the making of devices that have good scientific usage. Almost 95% of the supply comes from the deposits of China and therefore makes China the largest supplier of materials. Most of the deposits happen to be in the inner-Mongolia area in this country.
Rare earth metals china is therefore an important issue that has been dealt by the govt quite tactfully. With the largest deposit the China Govt declared limitation on export and mining. It is quite a visible and concerning fact that extraction often causes health and environment hazard in quite a great way. Also due to a very good deposit there lies a tendency to smuggle into other countries. Considering all these facts China has controlled its export and is more into conserving this material keeping in mind the health and environment issues in mind.
Rare earth materials are therefore some important materials that are used for industrial manufacturing purposes all over the world. They are rare because of their dispersed condition they cannot often be used for economic purposes. But their value is endless for many reasons.
Rare Metal Prices are not done like other invaluable metals such as gold and silver. They are often mixed and sold since they cannot often be collected in concentrated situations. Also these metals are not sold in open market. Therefore tracking their original price and demand often becomes difficult. There are particular websites where their prices are published periodically.