Assertion: silicon carbide | /r/CapableOf | sit at impressive 9–9.5
Facets:
value: on the mohs hardness scale
type: OTHER
Source sentences:
text: Sitting at an impressive 9–9.5 on the Mohs hardness scale, silicon carbide proved to be a much more powerful abrasive than those based on emery, corundum and garnet that came before.