Carnegieite

Carnegieite is a unusual nepheline material that is synthetic. Chemically, it’s aluminum silicate that is salt. Carnegieite is triclinic at low temperatures and isometric at high temperatures, possibly identical with Soda-Anorthite of S.J. Thugutt. Carnegieite is named for Scottish-born American industrialist, Andrew Carnegie (1835-1919) and was very first synthesized during the Carnegie Institution of Washington, D.C. that has been launched by Andrew Carnegie.