senaite

noun

sena·​ite

ˈsenəˌīt,

ˈsān-

plural -s

: a mineral (Fe,Mn,Pb)TiO₃ consisting of an oxide of iron, manganese, lead, and titanium occurring in black rounded crystals and fragments in the diamond-bearing sands of Minas Geraes, Brazil

Word History

Etymology

Joachim da Costa Sena, 19th century Brazilian mineralogist + English -ite

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