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barbertonite

noun
bar·ber·ton·ite | \-tᵊnˌīt, -təˌnīt\
plural -s

Definition of barbertonite 

: a mineral Mg6Cr2(OH)16(CO3)‧4H2O consisting of a hydrous basic carbonate of magnesium and chromium

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History and Etymology for barbertonite

Barberton + English -ite

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