Whin"stone" (?), n. [Whin + stone; cf. Scot. quhynstane.]

A provincial name given in England to basaltic rocks, and applied by miners to other kind of dark-colored unstratified rocks which resist the point of the pick. -- for example, to masses of chert. Whin-dikes, and whin-sills, are names sometimes given to veins or beds of basalt.


© Webster 1913.

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