moss agate


: an agate mineral containing brown, black, or green mosslike or dendritic markings

Word History

First Known Use

1798, in the meaning defined above

Time Traveler
The first known use of moss agate was in 1798

Dictionary Entries Near moss agate

Cite this Entry

“Moss agate.” Dictionary, Merriam-Webster, Accessed 24 Apr. 2024.

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