Sandstone sphere, small Arizona Sierra Pick your own:E including the flat breaks on

including the flat breaks on the bottom

Etching has also created a light crosshatch effect in the surface

Looking inside the clear quartz of the broken end

once established

which is why chalcedony can commonly feature quartz crystals

Sandstone sphere, small Arizona Sierra Pick your own:E including the flat breaks onApprox size: 22. 25" diameter Approx weight: 150190g Acrylic display ring included! Cover image shows options C and H. These polished spheres of picture sandstone are made from Arizona Sierra sandstone sourced from central Arizona. Sandstone is a sedimentary rock composed of sand compacted and cemented together through geological processes, giving it a grainy texture. Spheres make for a beautiful natural piece of decor, putting the layering on display