Race for rare earth materials | 7.30
Автор: ABC News (Australia)
Загружено: 2011-08-18
Просмотров: 31122
Описание:
Australia is aiming to become a producer of rare earths, a group of elements or metal oxides in high demand.
A total of 17 minerals are classified as rare earths, all of which have metallic properties.
Despite the "rare" name they're actually found in abundance in deposits all across the earth's crust. One element, cerium, which is used to polish smartphone touchscreens, is 15,000 times more abundant than gold.
The minerals are considered rare, however, because there are no credible artificial substitutes. In addition, supply of rare-earth minerals is vulnerable, as production is concentrated in a small handful of countries.
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