Tanzanite Chemical: Ca2Al3O(SiO4)(Si2O7)(OH). Clades: Epidote group; Sorosilicates; Silicate minerals; Lapidae. rom Related postsCariamiformesMarch 11, 2021Zizania palustrisNovember 27, 2024Vexatorella latebrosaOctober 30, 2020 Previous postLawsoniteNext postClinozoisite