Uranium minerals

• Uranium is contained in the following mineral:Uraninite

• Carnotite

• Autunite

• Uranophane

• Torbernite

• Coffinite

• Brannerite

• Metauranocircite-I

• Uranopilite

• Andersonite

• Betafite

• Coconinoite

• Meta-ankoleite

• Meta-autunite

• Metatorbernite

• Metazeunerite

• Phosphuranylite

• Torbernite

• Tyuyamunite

• Uranocircite

• Walpurgite

• Zeunerite

• Boltwoodite

• Cuprosklodowskite

• Sklodowskite

• Cliffordite

• Moctezumite?

• Schmitterite

• Zippeite

Significant concentrations of uranium occur in some substances such as phosphate rock deposits, and minerals such as lignite, and monazite sands in uranium-rich ores.

It is recovered commercially from sources with as little as 0.1% uranium.

In nature, uranium (VI) forms highly soluble carbonate complexes at alkaline pH.

Important uranium mining countries are Kazakstan, Canada, Australia, Niger, Namibia, Russia, Uzbekistan, United States, Argentina, Ukraine, China.

Uranium ore is mined in several ways: by open pit, underground, in-situ leaching, and borehole mining. Low-grade uranium ore mined typically contains 0.01 to 0.25% uranium oxides.

During the processing of minerals containing uranium, plants use the following types of separation:

• Gravity separation

• Flotation separation

• Electrical separation

• Chemical separation

• Special methods of separation

http://www.geologypage.com/2017/06/top-radioactive-minerals.html