Assertion: beryllium | /r/AtLocation | beryl
Facets:
value: mostly
type: DEGREE
value: in emeralds
type: LOCATION
Source sentences:
text: Beryllium is found in beryl and emerald, minerals that were known to the ancient Egyptians.
text: Beryllium is found as beryl in emeralds.
text: Beryllium is found in about 30 mineral species, including bertrandite, beryl, chrysoberyl, and phenacite, according to the Los Alamos National Laboratory.
text: Beryllium is found mostly in minerals like beryl [AlBe3(Si6O18)] and chrysoberyl (Al2BeO4).