Assertion: occurring tellurium | /r/AtLocation | the earth's crust
Facets:
value: as any platinum group metal
type: OTHER
Source sentences:
text: Naturally occurring tellurium is more rare than gold, and as difficult to find in the earth's crust as any platinum group metal (PGM), but due to its existence within extractable copper ore bodies and its limited number of end-uses tellurium's price is much lower than any precious metal.