siderazot

noun
sid·er·az·ot
variants: or siderazote \ˌsidəˈraˌzōt, -ərəˈzōt \
plural -s

Definition of siderazot 

: a mineral Fe5N2 consisting of a nitride of iron and found about Vesuvius and Etna volcanoes after various eruptions

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History and Etymology for siderazot

sider- + azote

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