Assertion: topaz | /r/Desires | special care
Facets:
value: in polishing
type: OTHER
value: because of its cleavage
type: CAUSE
value: in mounting
type: OTHER
value: in wear
type: OTHER
value: in cutting
type: OTHER
Source sentences:
text: Topaz is not very tough and because of its cleavage it requires special care in cutting, polishing, mounting and wear.