Assertion: anorthite | /r/HasProperty | rare
Facets:
value: on the earth
type: LOCATION
value: comparatively
type: MANNER
Source sentences:
text: Anorthite is rare on the Earth but abundant on the Moon.
text: Anorthite is a comparatively rare mineral but occurs in the basic plutonic rocks of some orogenic calc-alkaline suites.
text: Anorthite is rare on the Earth but abundant on the Moon.