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pyrognostics

N คุณ สมบัติ ของ แร่ เมื่อ ถูก ความร้อน 

 

Webster's 1913 Dictionary

PYROGNOSTIC

Pyr `og *nos "tic, a. Etym: [Pyro- + Gr. (Min. )

 

Defn: Of or pertaining to characters developed by the use of heat; pertaining to the characters of minerals when examined before the blowpipe; as, the pyrognostic characters of galena.

 

PYROGNOSTICS

PYROGNOSTICS Pyr `og *nos "tics, n. pl. (Min. )

 

Defn: The characters of a mineral observed by the use of the blowpipe, as the degree of fusibility, flame coloration, etc.