A mineral of the chalcedony family of quartz. Related to chrysoprase, which has a bright apple-green color, but prase has a slightly duller green and is extremely rare.

Prase (?), n. [L. prasius, fr. Gr. of a leek-green, fr. Gr. a leek: cf. F. prase.] Min.

A variety of cryptocrystalline of a leek-green color.


© Webster 1913.

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