Assertion: emerald's composition | /r/HasProperty | caf)(cef)ce co 3
Facets:
Source sentences:
text: This rare mineral, of the composition (CaF)(CeF)Ce (CO 3 ) 3 , 41 was first discovered in the Muzo mines by J.J. Paris, a lessee of the deposits, and named in his honor by Bunsen, 42 who investigated the mineral.