cmn: 金剛砂

Information
has URI	http://lexvo.org/id/term/cmn/%E9%87%91%E5%89%9B%E7%A0%82
character	Character U+91D1
character	Character U+525B
character	Character U+7802

Meaning
means	(noun) a hard grey-black mineral consisting of corundum and either hematite or magnetite; used as an abrasive (especially as a coating on paper) emery
means	(noun) an abrasive composed of silicon carbide crystals carborundum