magnesiocoulsonite, magnesioferrite, magnetite, manganochromite, qandilite, ringwoodite, spinel, trevorite...tetrahedral (T) and octahedral (M) sites (e.g., Hill et al. 1979). The space group symmetry is Fd3m,...Magnesiochromite MgCr2O4 8.333 1.965 1.995 Manganochromite MnCr2O4 8.437 2.031 1.998 Zincochromite ZnCr2O4...coulsonite, zincochromite, cochromite, and manganochromite. Recent structural refinements of natural chromites...chromites from the Bushveld Complex, South Africa, are reported by Lenaz et al. (2007). Cochromite—CoCr2O4 |