Discovery of a MG-Dominant Analog of Kamiokite, MG_2MO_3O_8, a New Mineral from an Allende Type B1 CAI

During a nano-mineralogy investigation of the Allende meteorite, two occurrences of a new Mo-Mg oxide mineral, Mg_2Mo_3O_8, which we designate kamiokite-(Mg) for the purposes of this abstract, were discovered in a Type B1 Ca-, Al-rich inclusion (CAI). The Mg analog of kamiokite (Fe_2Mo_3O_8) has a P6_3mc structure and it occurs in the same CAI as a variety of other newly-observed meteoritic minerals described by [1].