Assertion: zinc | /r/HasProperty | polished
Facets:
value: to a shiny silver luster
type: PURPOSE
value: to a bright finish
type: MANNER
Source sentences:
text: At room temperature, zinc is brittle and blue-white in color, but it can be polished to a bright finish.
text: Zinc is usually a gray metallic color, but it can be polished to a shiny silver luster.