† ˈtautolite Min. Obs.
[ad. Ger. tautolit (Breithaupt 1826); ‘adapted from [Gr.] ταὐτόµετρος of the same measure, referring to a supposed axial relation, and λίθος’ (Chester); see tauto- and -lite.]
An obsolete synonym of allanite.
| 1828 Philos. Mag. May 398 The tautolite seems to be related to the chrysolite, as the ceylanite to the spinelle. 1868 Dana Min. (ed. 5) 286 Bucklandite is anhydrous allanite in small black crystals... Tautolite..is probably the same species. |