melilite
(noun)
noun
1. (mineralogy) any mineral consisting of a solid solution of gehlenite (Ca2Al2SiO7) and akermanite (Ca2MgSi2O7)
(noun)
1. (mineralogy) any mineral consisting of a solid solution of gehlenite (Ca2Al2SiO7) and akermanite (Ca2MgSi2O7)