Brewer's: Blue John

(A). A petrefaction of blue fluor-spar, found in the Blue John mine of Tre Cliff, Derbyshire; and so called to distinguish it from the Black Jack, an ore of zinc. Called John from John Kirk, a miner, who first noticed it.

Source: Dictionary of Phrase and Fable, E. Cobham Brewer, 1894
Blue Laws
Blue Hen
A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Related Content

✖
 

 

sandbbox logo
©2022 Sandbox Networks Inc. All rights reserved. Sandbox Learning is part of Sandbox & Co., a digital learning company.