- 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.
Origin of pyrognostics
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
- the characteristics of a mineral, such as fusibility and flame coloration, that are revealed by the application of heat
C19: from pyro- + -gnostics, from Greek gnōsis knowledge
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