comptonite Min.
(ˈkɒmptənaɪt)
[named 1821 by Brewster after Earl Compton who brought it from Vesuvius: see -ite.]
A mineral of the zeolite family, occurring in cavities of trap-rock and old lavas; the same as thomsonite.
| 1822 Cleaveland Min. 386. 1865 Page Handbk. Geol. Terms, Comptonite..occurring with calc-spar and other zeolitic minerals. 1869 Phillips Vesuv. xi. 305 Comptonite and analcime are found with many other minerals. |