bayleyite

bayleyite

[′bā·lē‚īt]
(mineralogy)
Mg2(UO2)(CO3)3·18H2O A sulfur yellow monoclinic mineral consisting of a hydrated carbonate of magnesium and uranium; occurs as minute, short-prismatic crystals.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.