Assertion: carnotite's radium | /r/CapableOf | occur as a disintegration product
Facets:
value: naturally
type: MANNER
Source sentences:
text: Therefore, radium occurs naturally only as a disintegration product in the three natural radioactive decay series (Thorium, Uranium, and Actinium series).
text: Therefore, radium occurs naturally only as a disintegration product in the three natural radioactive decay series (thorium, uranium, and actinium series).