Assertion: periclase | /r/MadeOf | minor amounts of impurities
Facets:
Source sentences:
text: crude magnesia, i.e. magnesia containing minor amounts of impurities such as oxides of Fe, Si, Ca and Al, and
text: crude magnesia, i.e. magnesia containing minor amounts of impurities such as oxides of Fe, Si, Ca and Al, and
text: crude magnesia, i.e. magnesia containing minor amounts of impurities such as oxides of Fe, Si, Ca and Al, and