Photograph showing microscopic view (16 X) of an Apache Plain or Tizon Wiped sherd's temper. Notice that the temper in this sherd is much smaller and in less abundance than the temper shown in the Temper 1 and Temper 2 pictures. Also notice the dark core.
Photo by Lee Rains Clauss, sherd courtesy of Apache-Sitgreaves National Forest (Black Canyon Rockshelter collection).