Polished Carnelian or Agate Mineral Sphere

Story

Silica-rich fluids settled into the hollow cavities of volcanic rock millions of years ago, slowly hardening into the solid mass you see here. This specific stone was likely harvested from a riverbed or a deep quarry before being brought to a lapidary workshop to be transformed.

Maker / Origin

While the individual lapidary artist is unknown, this piece represents the global tradition of stone-cutting found in mineral-rich regions like the Rio Grande do Sul in Brazil.

Condition & Value

The sphere shows several significant surface chips and a prominent vertical fracture line, likely from a drop or rough handling. These 'bruises' are common in softer or more brittle stones but do reduce the value by approximately 40-50% compared to a museum-grade specimen.