margarosanite

margarosanite

[‚mär·gə′rōs·ən‚īt]
(mineralogy)
PbCa2(SiO3)3 A colorless or snow-white triclinic mineral composed of lead calcium silicate, occurring in lamellar masses.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.