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

including the flat breaks on the bottom

This specimen is lined with red quartz with a secondary ring of quartz growth

with alternating thin bands of violet

Etching has also created a light crosshatch effect in the surface

I don't know how often breaks occur due to rough techniques in mining or cracking the geodes open

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