hewettite

noun
hew·​ett·​ite | \ˈhyüə̇ˌtīt\
plural -s

Definition of hewettite 

: a mineral CaV6O16.9H2O consisting of a hydrous calcium vanadate occurring in mahogany-red silky aggregates (specific gravity 2.5)

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History and Etymology for hewettite

D. Foster Hewett †1971 American geologist + English -ite

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