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benjaminite

noun ben·ja·min·ite \ ˈben-jə-mə-ˌnīt \
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Definition of benjaminite

plural -s
: a mineral Pb (Cu, Ag) Bi2S4 consisting of sulfobismuthite of lead, silver, and copper occurring in gray masses

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Origin and Etymology of benjaminite

Marcus Benjamin †1932 American museum official + English -ite

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