The intense heat and often rapidly cooling nights, wind blown sand, occasional heavy rain and above all else an almost unimaginable spread of time have worn down the rocks. Uluru has a flaky surafce calling to mind a sheet of rusted metal rather than stone.
Even in the winter you could feel the heat bouncing from it surface. It called out to be touched.
You can find more macro shots at Macro Monday 2 and I Love Macro.
Enjoy the close ups.