Fig. 5. Orthoclase (black) with tiny remnant plagioclase inclusions. The orthoclase forms scalloped edges against adjacent plagioclase crystals (light gray; right side and upper left). Plagioclase grain in upper left has veins of sodic plagioclase (barely visible) like that in Fig. 6. Myrmekite grains border the three orthoclase fingers (black) that project into the plagioclase (right side), but the tiny quartz vermicules are invisible in this orientation.