sandstone

   Loosely speaking, sandstone is a rock formed by deposition (from wind or water) of sand grains that become cemented together over time.  It is composed mostly of quartz, and it can make for stunning, towering cliffs, and is frequently colored brownish, reddish, or pinkish.
   Around the Valley of the Sun, sandstone forms (in part) the west end of Camelback Mountain and the buttes in Papago Park.
   Much of the spectacular scenery of northern Arizona and southern Utah is made of sandstone.  The most massive formations there are the now-hardened remains of the dunes of a great Sahara-like desert that covered that part of the world during Jurassic time.

-----------------------------

   If this window appears as a full-size, rather empty looking web page, either you do not have scripting and "pop-ups" enabled in your web browser, or you have found it only by way of a search function. 
   In the former case, you can return to the main website by using your "Back" button, or by accessing our Home Page at www.gemland.com.
   In the latter case, you will have to access our website's Home Page by going to www.gemland.com.

   If this window appears as a "pop-up", simply close this window to return to where you were.
   [060811]

Below are