freirinite

freirinite

[frā′rē‚nīt]
(mineralogy)
Na3Cu3(AsO4)2(OH)3·H2O A lavender to turquoise-blue mineral composed of a basic hydrous arsenate of sodium and copper.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.