This is an approx. 47mm Onyx/Banded Calcite Sphere that weighs approx. 153 grams. (comes with a small sphere stand.)
Banded Calcite is Calcite that has banding thru the mineral and is often sold as Onyx, Pakistan and Mexican Onyx. It has a Mohs of 3 (True Onyx is 7) and comes in a variety of colors.
Onyx/ Banded Calcite Sphere
SKU: SPH 6
$16.00Price