Assertion: topaz | /r/HasAspect | perfect cleavage
Facets:
Source sentences:
text: However, it does have perfect cleavage which can make it prone to chipping or forming flaw s if banged hard.
text: Furthermore, quartz has indistinct cleavage, whereas topaz has perfect cleavage.
text: Furthermore, quartz has indistinct cleavage, whereas topaz has perfect cleavage.
text: Topaz has perfect cleavage in the direction of the basal plane (001), so care should be taken not to knock the gemstone.