plural -s
: a mineral (Fe,Mn,Ca)3(PO4)2 consisting of an iron manganese calcium phosphate occurring in salmon-pink laminated intergrowths with triphylite (hardness 5, specific gravity 3.7)

Word History


Grafton, New Hampshire + English -ite

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Dictionary Entries Near graftonite

Cite this Entry

“Graftonite.” Dictionary, Merriam-Webster, Accessed 22 Jul. 2024.

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