Assertion: mineral's composition | /r/HasProperty | variable
Facets:
value: highly
type: DEGREE
value: because of numerous substitutions
type: CAUSE
value: depending on the local rock sources
type: OTHER
Source sentences:
text: The composition of mineral sand is highly variable, depending on the local rock sources and conditions.
text: The composition of porcelain is highly variable, but the clay mineral kaolinite is often a raw material.
text: Composition of clay minerals is variable and very complicated because of numerous substitutions.