moss agate

noun

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

moss agate

First recorded in 1790–1800

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

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

Mr. Colon picked up a fine moss agate and the Professor a Kansas diamond.

On the street I met the stage manager and the tall, dark man just as they were coming out of the Moss Agate saloon.

It is a chalky white, and shows a growth of moss like that of moss agate.

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