Assertion: alexandrite's color | /r/HasProperty | marketed as igmerald
Facets:
value: by the i. g. farbenindustrie conglomerate
type: OTHER
Source sentences:
text: Later German experimenters succeeded in growing small emeralds of fine color, which were marketed as “Igmerald” by the I. G. Farbenindustrie conglomerate as early as 1934.