dickinsonite

noun

dick·​in·​son·​ite

ˈdikə̇nsəˌnīt

plural -s

: a green mineral H₂Na₆(Mn,Fe,Ca,Mg)₁₄(PO₄)₁₂.H₂O consisting of foliated hydrous acid phosphate chiefly of manganese, iron, and sodium (specific gravity 3.34)

Word History

Etymology

William Dickinson, 19th century American clergyman and mineralogist + English -ite

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