plumboniobite

noun
plum·​bo·​niobite | \ "+ \

Definition of plumboniobite

: a niobite of complex composition resembling samarskite but containing lead and found in dark brown to black masses in pegmatite veins or massive slate

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History and Etymology for plumboniobite

German plumboniobit, from plumb- + niobit niobite

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Cite this Entry

“Plumboniobite.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/plumboniobite. Accessed 10 Aug. 2020.

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