A yellow ore of uranium and radium with composition K(UO2)2(VO4)2·3H2O.
A yellow mineral that's a potassium uranyl vanadate that is an important ore or uranium, aided by the chemical formula K2(UO2)2(VO4)2·3H2O.
A more or less impure hydrated vanadate of uranium and potash, occurring significantly amply in Montrose county and elsewhere in Colorado: found as a yellow crystalline dust or in loosely coherent public. It has radium and it is considered very radio-active.
a yellow radioactive mineral; an ore of uranium and radium and vanadium