ellestadite

noun

el·​le·​stad·​ite

ˈeləˌstaˌdīt

plural -s

: a variety of apatite Ca₅(F,Cl,OH)[(P,Si,S,C)O₄]₃ containing silicon, carbon, and sulfur replacing some of the phosphorus

Word History

Etymology

Reuben B. Ellestad, born 1900 American chemist + English -ite

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