Fig. 25. Poikilitic K-feldspar (dark gray) encloses remnant islands of albite-twinned plagioclase crystals (black, gray, white). These islands are optically parallel, and some are bordered by rim myrmekite or contain tiny quartz blebs. Desolation Valley granodiorite, same location as Fig. 24. Thin section 247 from Loomis collection.