Hypertext Webster Gateway: "Cawk"
From Webster's Revised Unabridged Dictionary (1913) (web1913)
Cawk \Cawk\ (k[add]k), n. [Prov. E. cauk limestone. A doublet of
chalk.] (Min.)
An opaque, compact variety of barite, or heavy spar. [Also
written {cauk}.]
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