This Specimen has been sold.
3" Polished Blue Calcite Sphere - Argentina
This is a 3" wide, polished sphere made from "blue calcite" mined in Argentina. Comes with a display stand.
Often sold under the name blue onyx or aquamarine onyx this beautiful, marbled, blue/caramel stone is actually calcite and not technically an onyx. It's quarried in the high mountains of Argentina at an elevation of over 17,000 feet and used as an ornamental or decorative stone.