picromerite
picromerite
[pi′kräm·ə‚rīt] (mineralogy)
K2Mg(SO4)2·6H2O A white mineral composed of hydrous sulfate of magnesium and potassium, occurring as crystalline encrustations.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.