thinoliteMin.|ˈθaɪnəlaɪt| [f.Gr. θῑ́ς, θῑν- (seeprec.) + λίθος stone: see -lite.] ‘A variety of calcite, occurring in pseudomorphous crystals, the original mineral being still in doubt’ (Chester Dict.Min. 1896). 1879C. King Geol. 40th Parallel I. 508 (Chester).