Autunite

Chemical Formula

Ca(UO2)2(PO4)2·10-12H2O

Chemical Class

Phosphates

Properties

Autunite is a mineral that contains uranium, it is radioactive when found in large reservoir. In it, it is possible to note amazing greenish yellow crystals that lose color and decompose in dry environments.

Origin

São Geraldo de Baixio, Minas Gerais.

Curiosities

It is very common and fluorescent under ultraviolet light.

Use

The mineral is extracted and marketed to achieve uranium. Photo credit: Leonardo Miranda

ABC of mining