Assertion: spodumene | /r/HasProperty | the most used
Facets:
value: most commonly
type: DEGREE
value: for lithium production
type: PURPOSE
value: of the five minerals
type: OTHER
Source sentences:
text: Of the five minerals, spodumene is the most commonly used for lithium production.
text: Spodumene is the most important lithium containing hard rock mineral.