goyaziteMin.|ˈgɔɪəzaɪt| [Named by Damour 1864 after Goyaz, a town in Brazil: see -ite.] Phosphate of aluminium and calcium found in small yellow grains in the diamond sands. 1884Amer.Jrnl.Sci.Ser. iii. XXVIII. 237 Damour has given the name goyazite to a phosphate of alumina and lime.