Assertion: calcium carbonate | /r/HasProperty | an abrasive
Facets:
value: as scouring powder
type: MANNER
value: in its calcite form
type: OTHER
Source sentences:
text: Ground calcium carbonate is an abrasive (both as scouring powder and as an ingredient of household scouring creams), in particular in its calcite form, which has the relatively low hardness level of 3 on the Mohs scale, and will therefore not scratch glass and most other ceramics, enamel, bronze, iron, and steel, and have a moderate effect on softer metals like aluminium and copper.