The Rocks Specimens include Some of the following Agate, Alabaster, Amethyst, Apatite, Asbestos, Aventine, Azurite, Barrettes, Bauxite Hard, Beryl Aquamarine, Biotite, Boron, Calcite Milky, Calcite ,Transparent, Chalcopyrite, China Clay, Sand Stone Silicious, Serpentine, Shale, Slate etc.