Also called precious moonstone. a semitransparent or translucent, opalescent, pearly-blue variety of adularia, used as a gem.
any of several adularescent feldspars, as certain varieties of albite, labradorite, or oligoclase, used as gems.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use moonstone in a sentence
Then we searched for its namesake moonstones, which aren’t true moonstone gems, but a variety of quartz.On California’s Central Coast, a low-key exploration of wineries, restaurants and nature | Tracey Ceurvels | October 7, 2021 | Washington Post
Of all her trinkets, and she had many and valuable ones, none so charmed the fool as the moonstone pendant.The Court Jester | Cornelia Baker
I always measure things by that six hundred dollars, just as I measure high buildings by the moonstone standpipe.Song of the Lark | Willa Cather
Nearly all my dreams, except those about breaking down on the stage or missing trains, are about moonstone.Song of the Lark | Willa Cather
If the jugglers were innocent, who, in the name of wonder, had taken the moonstone out of Miss Rachel's drawer?The Moonstone | Wilkie Collins
She only once alluded to the matter of the moonstone, and that was in the way of forbidding any present mention of it between us.The Moonstone | Wilkie Collins
British Dictionary definitions for moonstone
a gem variety of orthoclase or albite that is white and translucent with bluish reflections
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012