Assertion: mineral | /r/CapableOf | exhibit pearly luster
Facets:
value: on cleaved surfaces
type: LOCATION
Source sentences:
text: Some minerals may exhibit a pearly luster on cleaved crystal surfaces parallel and below the reflecting surface of a mineral.
text: Some minerals exhibit a pearly luster on cleaved surfaces, so it is a good idea to check for luster on uncleaved portions of the crystal.