Assertion: beryllium's compound | /r/HasProperty | beryl
Facets:
Source sentences:
text: The most important commercial sources of beryllium and its compounds are beryl and bertrandite.
text: A common compound of beryllium, beryl, was known in ancient Egypt, but nothing was known about the chemical composition of this mineral until the end of the eighteenth century.
text: The most important commercial sources of beryllium and its compounds are beryl and bertrandite.
text: The most important commercial sources of beryllium and its compounds are beryl and bertrandite.
text: The most important commercial sources of Beryllium and its compounds are beryl and bertrandite.