graftonite

noun
graf·​ton·​ite | \ˈgraftəˌnīt\
plural -s

Definition of graftonite 

: 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)

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History and Etymology for graftonite

Grafton, New Hampshire + English -ite

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