Bright yellow carnotite crust on matrix from the USA with reflection.
Bright yellow granular carnotite specimen from the USA against black background.
Macro photograph of powdery yellow carnotite mineral texture from the USA.

Carnotite

Carnotite – K2(UO2)2(VO4)2·3H2O
Elements: Potassium, Uranium, Oxygen, Vanadium, Hydrogen
Class: Vanadates
Crystal System: Monoclinic
Hardness: 2
Gypsum
Talc (1)Diamond (10)
Soft. A fingernail can scratch it.
Origin: Egnar, San Miguel, Colorado – Usa
Did you know?

The bright yellow carnotite of the American West was mined first for radium, then for the uranium behind the atomic age.

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