Assertion: hafnium | /r/AtLocation | combined
Facets:
value: in most naturally occurring zirconium minerals
type: OTHER
value: with zirconium
type: OTHER
Source sentences:
text: It does not exist as a free element on Earth, but is found combined in solid solution with zirconium in natural zirconium compounds such as zircon, ZrSiO 4 , which usually has about 1–4% of the Zr replaced by Hf.
text: It does not exist as a free element on Earth, but is found combined in solid solution with zirconium in natural zirconium compounds such as zircon, ZrSiO 4 , which usually has about 1–4% of the Zr replaced by Hf.
text: It is not found in its free form on Earth, but it can be found combined with zirconium in most naturally occurring zirconium minerals.