Fig. 10. Border of isolated large orthoclase megacryst (dark gray), showing remnants of granulated groundmass minerals. Black in top of photo is glass of thin section. Orthoclase projects into and around granulated groundmass minerals at the edge of the megacryst, and other former boundaries can be seen in the interior of the megacryst with disoriented framents and tiny granulated remnant crystals. Some of these inclusions form a train of tiny crystals that are nearly in the same parallel alignment. Other crystals are strongly inclined to the zonation. Biotite (brown).