petalite Min.
(ˈpɛtəlaɪt)
[mod. (d'Andrada, 1800) f. Gr. πέταλον leaf + -ite.]
A silicate of aluminium and lithium, occurring in whitish or greyish masses having leaf-like cleavage.
| 1808 T. Allan Names of Min. 51 Petalite..a Swedish mineral named by Dandrada. 1818 W. Phillips Outl. Min. & Geol. (ed. 3) Advt., Petalite..composed, in round numbers, of 80 parts of silex, 17 of alumine and 3 of lithion. 1850 Daubeny Atom. The. xii. (ed. 2) 408 Minerals which are destitute of water..Petalite. |