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Webster 1913 Edition

Noun.

[

Odonto-

-lite

(Min.)

A fossil tooth colored a bright blue by phosphate of iron. It is used as an imitation of turquoise, and hence called

bone turquoise

odontolite ‎(plural odontolites)

(mineralogy) A fossil tooth coloured a bright blue by iron phosphate, used as an imitation turquoise.