phlogopite
a magnesium-rich mica mineral, usually yellowish-brown, but sometimes reddish-brown.
Origin of phlogopite
1Words Nearby phlogopite
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024
British Dictionary definitions for phlogopite
/ (ˈflɒɡəˌpaɪt) /
a brownish mica consisting of a hydrous silicate of potassium, magnesium, and aluminium, occurring principally in metamorphic limestones and ultrabasic rocks. Formula: KMg 3 AlSi 3 O 10 (OH) 2: See also mica
Origin of phlogopite
1Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Scientific definitions for phlogopite
[ flŏg′ə-pīt′ ]
A yellow to dark-brown mica. Phlogopite is monoclinic and is usually found in limestone. It is used in insulation. Chemical formula: K(Mg,Fe)3AlSi3O10(OH)2.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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