˜yÐÄvlog

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pyrognostics

[ pahy-ruhg-nos-tiks ]

plural noun

  1. those properties of a mineral that it exhibits when heated, alone or with fluxes, in the blowpipe flame, as the fusibility, intumescence, or other phenomena of fusion, flame coloration, etc.

pyrognostics

/ ËŒ±è²¹Éª°ùɒɡˈ²ÔÉ’²õ³Ùɪ°ì²õ /

plural noun

  1. the characteristics of a mineral, such as fusibility and flame coloration, that are revealed by the application of heat
“Collins English Dictionary — Complete & Unabridged†2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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˜yÐÄvlog History and Origins

Origin of pyrognostics1

First recorded in 1840–50; pyro- + gnost(ic) + -ics
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˜yÐÄvlog History and Origins

Origin of pyrognostics1

C19: from pyro- + -gnostics, from Greek ²µ²ÔŲõ¾±²õ knowledge

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