Assertion: calcium carbonate's form | /r/HasProperty | purest
Facets:
Source sentences:
text: In its purest form, calcium carbonate is derived from natural stone like marble, but it can also be processed to change unrefined calcium oxide into precipitated calcium carbonate (PCC).
text: In its pure form, calcium carbonate contains about 40 percent by weight of elemental calcium (the other elements are carbon and oxygen).
text: In its purest form, calcium carbonate is derived from natural stone like marble, but it can also be processed to change unrefined calcium oxide into precipitated calcium carbonate (PCC).