hellandite

noun
hel·​land·​ite | \ˈhelənˌdīt\
plural -s

Definition of hellandite 

: a mineral consisting of a silicate of the cerium metals with aluminum, iron, manganese, and calcium

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History and Etymology for hellandite

German hellandit, from Amund Helland †1918 Norwegian geologist + German -it -ite

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