Word Study
apatite
CIDE DICTIONARY
apatite, n. [Gr. deceit, fr. to deceive; it having been often mistaken for other minerals.].
Native phosphate of lime, occurring usually in six-sided prisms, color often pale green, transparent or translucent. [1913 Webster]
OXFORD DICTIONARY
apatite, n. a naturally occurring crystalline mineral of calcium phosphate and fluoride, used in the manufacture of fertilizers.
Etymology
G Apatit f. Gk apate deceit (from its deceptive forms)
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