montaniteMin.|ˈmɒntənaɪt| [f. the name of Montana, one of the States of the American Union: see -ite.] A hydrous telluride of bismuth occurring in yellowish earthy incrustations. 1868Genth in Amer.Jrnl.Sci.Ser. ii. XLV. 317 A tellurate of bismuth, for which I propose the name ‘Montanite’.