Webster's Revised Unabridged Dictionary · 1913

Blue-john

Blue-john ({not transcribed}) , noun

A name given to fluor spar in Derbyshire, where it is used for ornamental purposes.

Text from the public-domain GNU Collaborative International Dictionary of English, derived from Webster's Revised Unabridged Dictionary (1913). Definitions marked with were added by later GCIDE contributors and are not in the original 1913 edition.

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