Yellow sapphire English: Yellow sapphire. Clades: Oxides Chemical: Aluminium oxide , Al2O3 Crystal system: Trigonal. rom Related postsRibes sanguineumMarch 24, 2024Mondia whiteiOctober 30, 2020Acidum hydrocyanicumMarch 10, 2019 Previous postWolframiteNext postNorth wales slate