Assertion: silicon carbide | /r/AtLocation | nature
Facets:
value: rarely
type: DEGREE
value: seldom
type: TEMPORAL
Source sentences:
text: Silicon carbide can be found in the mineral moissanite, but it is rarely found in nature.
text: Silicon carbide or SiC is a chemical produced from the one-to-one binding of carbon (C) and silicon (Si), and is seldom found in nature.
text: Silicon carbide is rarely found in nature and, therefore, it is more commonly produced synthetically.
text: When it is found in nature, it is found as the mineral moissanite.