Detail of 21. Quartz grains are elongated approximately 2:1, oblique to the mica foliation, consistent with dextral (top to the right) sense of shear. In mica-poor layers, quartz recrystallized grain size is larger: Recrystallized grain size is limited by mica grains pinning the grain boundaries; dislocation creep regime 3. (Sample SI-11 A, sheet 3, Ruby Gap Duplex, central Australia) (1.3 mm)