The stability of moissanite (SiC) has been computed for upper mantle conditions using the internally optimized thermodynamic dataset for the Mg-Si-O compounds of Fei et al. (1990). The computations consider the effects of ...
EET 90102 is the first known diopside-bearing EL6 chondrite. Diopside occurs in most aubrites and is occasionally found as rare small grains in unequilibrated enstatite chondrites, but is unknown from equilibrated enstatite ...