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sussexite

noun
sus·​sex·​ite | \ -kˌsīt\
plural -s

Definition of sussexite

: a mineral MnBO2OH isomorphous with szaibelyite consisting of a borate of manganese and occurring in white fibrous veins (hardness 3, specific gravity 3.4)

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History and Etymology for sussexite

Sussex, county of northern New Jersey + English -ite

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