helvite Min.
(ˈhɛlvaɪt)
[f. as helvin + -ite.]
= helvin.
| 1868 Dana Min. (ed. 5) 264 Helvite. 1877 Watts Fownes' Chem. (ed. 12) I. 394 This somewhat rare metal [beryllium] occurs as a silicate..in beryl, emerald, euclase, leucophane, helvite, and several varieties of gadolinite. |