Assertion: erbium | /r/AtLocation | mineral
Facets:
value: along with other rare earth elements
type: OTHER
Source sentences:
text: Erbium (Er, atomic number 68) is found in minerals that dysprosium is found in (xenotime, fergusonite, gadolinite, euxenite, polycrase and blomstrandine).
text: Erbium occurs in several minerals, along with other rare earth elements.
text: Erbium is not found free in nature but is found in a number of minerals: mainly monazite, bastnasite, xenotime and euxenite.
text: Erbium, one of the so-called rare-earth elements on the lanthanide series, is found in the minerals mentioned under dysprosium.