hydrotalcite

noun
hy·dro·tal·cite
plural -s

Definition of hydrotalcite 

: a pearly-white mineral Mg6Al2(OH)16(CO3).4H2O consisting of hydrous aluminum and magnesium hydroxide and carbonate

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History and Etymology for hydrotalcite

German hydrotalkit, from hydr- + talk talc (probably from Middle French talc) + German -it -ite

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