Sillimanite Chemical: Al2SiO5. Clades: Al2SiO5 group; Nesosilicates; Silicate minerals; Lapidae. rom Related postsCornus floridaFebruary 14, 2020Acokanthera schimperiMarch 10, 2019BromapatiteFebruary 27, 2021 Previous postKyaniteNext postNorbergite