Assertion: plutonium | /r/AtLocation | nature
Facets:
value: with some uranium ores
type: OTHER
value: from man's influence
type: OTHER
Source sentences:
text: In my mind if Pu is found in nature at all, it is not synthetic as a class, but Pu may also be made synthetically.
text: Since plutonium exists in nature apart from man's influence, plutonium cannot be labeled as a synthetic element.
text: These new weapons required plutonium as the fuel in their nuclear reactions, and plutonium is found in nature in only tiny amounts in very specific situations.
text: Plutonium is found in the nature with some uranium ores, but only in ultratraces.