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blue note
blue on blue
blue pages
blue-pencil
Blue Peter
blue-plate
blue point
blue racer
blue riband
blue ribbon
blue-ribbon jury
Blue Ridge
blue-rinse
blue shark
blue-sky
blue-sky law
Blue Springs
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blue john
blue john


noun 
Definition:
 
U.K. blue or purple fluorspar: a blue or purple form of the mineral fluorspar found only in Derbyshire, England
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
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