Y-791491, 51-1: Lodranite

          PTS shows a coarse-grained aggregate (1 mm in size) with granular texture, consisting mainly of olivine (42 vol%), orthopyroxene (28%) and Ni-Fe-troilite 30%, with minor amounts of Aug (0.1%), plagioclase (0.3%), Cl-apatite, chromite (0.1%) and merrillite (0.2%). Nickel-iron, plagioclase, and augite fill the interstices of mafic silicates and often show concave, rounded boundaries. Plagioclase occurs as a film mantling an olivine crystal and fills interstices of olivine and orthopyroxene together with merrillite, metal, and augite. The textures and mineral distribution are the same as those of the Y-791493 lodranite. Chemical compositions of olivine cores are uniform throughout the PTS. Chemical compositions of orthopyroxene are roughly uniform for major elements, but the CaO contents are variable within a crystal.