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moss agate

noun
  1. a kind of agate or chalcedony containing brown or black mosslike dendritic markings from various impurities.
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Origin of moss agate

First recorded in 1790–1800
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for moss agate

Historical Examples

  • The governing planet of the month is Venus, and the gems are moss-agate and emerald.

    The Scrap Book, Volume 1, No. 3

    Various

  • His soft eyes hardened and the moss-agate look came into them.

    Fore!

    Charles Emmett Van Loan

  • There was blood upon that moon, and all the shores were like veins in moss-agate and the sea like oil.

    Over the Rocky Mountains to Alaska

    Charles Warren Stoddard

British Dictionary definitions for moss agate

moss agate

noun
  1. a variety of chalcedony with dark greenish mossy markings, used as a gemstone
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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