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Lindsleyite: (Ba,Sr)(Ti,Cr,Fe,Mg)21O38
Comments: Lindsleyite (L) enclosing chrome spinel (C) and surrounded by chrome diopside (Cpx). Sample JJG-360, Bultfontein. B&W reflected light in air. (AmMin, v68:494). Location: Metasomatized peridotites and heavy media concentrates from four kimberlites in the Republic of South Africa. Scale: Scale Bar 0.2 mm. © American Mineralogist