ˌ ̷ ̷ ̷ ̷+ˈtalˌsīt noun
( -s )
Etymology: German hydrotalkit, from hydr- + talk talc (probably from Middle French talc ) + German -it -ite
: a pearly-white mineral Mg 6 Al 2 (OH) 16 (CO 3 ).4H 2 O consisting of hydrous aluminum and magnesium hydroxide and carbonate