Minerals identify

Know how to recognize them

Guilleminite

Oxide mineral

Guilleminite (Ba(UO2)3(SeO3)2(OH)4•3H2O) is a uranium mineral named by R. Pierrot, J. Toussaint, and T. Verbeek in 1965 in honor of Jean Claude Guillemin (1923–1994), a chemist and mineralogist. It is a rare uranium/selenium mineral found at the Musonoi Mine of the Democratic Republic of the Congo

This secondary mineral also includes barium in its structure, in addition to selenium and uranium. It is bright yellow in colour and usually has an acicular. It has a Mohs hardness

Identification

Crystal ( diaphaneity )

Orthorhombic

Radioactive

Radioactive