Assertion: cordierite | /r/HasProperty | iolite
Facets:
value: in the gem
type: LOCATION
value: in jewelry industry
type: LOCATION
Source sentences:
text: Pleochroism in Cordierite (Iolite)
text: Cordierite is the mineral known as "Iolite" when it is of gem quality.
text: Cordierite (iolite) and plagioclase feldspar is a common metamorphic mineral assemblage, and similar material reportedly from India has been documented in the past (Winter 1991 Gem News,
text: It is known as "iolite" in the gem and jewelry industry.