Assertion: calcium carbonate | /r/HasProperty | prepared in one of two processes
Facets:
value: synthetically
type: MANNER
value: other than the natural occurrence
type: OTHER
Source sentences:
text: Other than the natural occurrence as a mineral, strontium carbonate is prepared synthetically in one of two processes, both of which start with naturally occurring celestine, a mineral form of strontium sulfate (SrSO 4 ).