devillite
devillite
[də′vē‚līt] (mineralogy)
Cu4Ca(SO4)2(OH)6·3H2O A dark-green mineral consisting of a hydrous basic sulfate of copper and calcium, occurring in six-sided platy crystals.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.