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thorogummite

noun
tho·​ro·​gummite | \ˌthōrəˈgəˌmīt, ˌthȯr-\

Definition of thorogummite 

: a decomposition mineral approximately Th2(UO2)Si3O11.3H2O that is a hydrous silicate of thorium and uranium

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History and Etymology for thorogummite

thorium + -o- + gummite

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