landesite

noun

lan·​des·​ite

ˈlandəˌsīt

plural -s

: a mineral Fe₆Mn₂₀(PO₄)₁₆.27H₂O(?) consisting of a rare hydrous ferromanganese phosphate occurring as a brown alteration crust on reddingite

Word History

Etymology

Kenneth K. Landes, born 1899 American geologist + English -ite

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