n. [ Named from Gr. &unr_; inferior, because not so hard as some minerals it resembles, e. g., hyacinth. ] (Min.) Cinnamon stone, a variety of garnet. See Garnet. [ 1913 Webster ]
n. (Chem.) A hard, black variety of vulcanite. It may be cut and polished, and is used for many small articles, as combs and buttons, and for insulating material in electric apparatus. [ 1913 Webster ]
n. (Chem.) A hard, black variety of vulcanite. It may be cut and polished, and is used for many small articles, as combs and buttons, and for insulating material in electric apparatus. [ 1913 Webster ]
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