Assertion: dolomite | /r/MadeOf | impurity
Facets:
value: usually
type: DEGREE
Source sentences:
text: Dolomite usually contains impurities, chiefly silica, alumina and Iron Oxide.
text: Dolomite usually contains impurities, chiefly silica, alumina and iron oxide.
text: Dolomite usually contains impurities, chiefly silica, alumina and iron oxide.