We have several sets of these red agate bookend sets. They have highly polished faces and inner surfaces, a flat-cut base, and are quite beautiful. They make a great gift. Click on the thumbnail picture to see more. I visited a few other rock and mineral web sites after spending a great deal of time looking through your listings.
Alabaster is a fine grained variety of gypsum.
Because of its fine grain and softness, it is very suitable for carving. It is used for making beautiful artistic sculptures and pottery. These specimens are from a large, orange, translucent piece of alabaster found in Arizona. Requests for small albite specimens caused him to grab his hammer and reduce a few of our large specimens. Albite, a member of the Feldspar group, 6.0 to 6.5 hardness.