n. [ Gr. &unr_; (sc. &unr_;) Cimolian earth, fr. &unr_;, L. Cimolus, an island of the Cyclades. ] (Min.) A soft, earthy, clayey mineral, of whitish or grayish color. [ 1913 Webster ]

n. [ Gr. 'i`on a violet + -lite. ] (Min.) A silicate of alumina, iron, and magnesia, having a bright blue color and vitreous luster; cordierite. It is remarkable for its dichroism, and is also called dichroite. A variety called Caribbean iolite has a lighter blue color. [ 1913 Webster +PJC ]