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neptunite

noun
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nep·​tun·​ite | \ -ˌnīt \
plural -s

Definition of neptunite

: a mineral (Na,K)2(Fe,Mn)TiSi4O12 consisting of a silicate of iron, manganese, potassium, sodium, and titanium

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History and Etymology for neptunite

Swedish neptunit, from Latin Neptunus Neptune + Swedish -it -ite

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“Neptunite.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/neptunite. Accessed 20 Oct. 2020.

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