Detail of 24. Recrystallized quartz grains show the typical microstructure of pinned boundaries. The recrystallized grain size is limited by the micas, although the smaller micas did not pin the boundaries which migrated past them; the distribution of small micas might indicate the characteristic recrystallized grain size at an earlier stage of the deformation-recrystallization process (possibly represented by photo 23); dislocation creep regime 3. (Sample 249 A, sheet 5, Ruby Gap Duplex, central Australia) (1.3 mm)