Staurolite Chemical: Fe2Al9(SiO4)4(O,OH)2. Clades: Al2SiO5 group; Nesosilicates; Silicate minerals; Lapidae. rom Related postsHelianthaceaeMarch 10, 2019Illecebrum verticillatumMarch 10, 2019SarraceniaceaeMarch 10, 2019 Previous postKyaniteNext postNorbergite