Pleonaste | n. [ Gr.&unr_; abundant, rich; cf. F. pléonaste. ] (Min.) A black variety of spinel. [ 1913 Webster ] |
ceylonite | (n) a dark-colored spinel containing iron, Syn. pleonaste |
Pleonaste | n. [ Gr.&unr_; abundant, rich; cf. F. pléonaste. ] (Min.) A black variety of spinel. [ 1913 Webster ] |