Cantera opal cabochon from Magdalena, Jalisco, Mexico. A compact dome with a warm gray rhyolite matrix opening to a vivid core of molten orange and yellow fire, edged with flashes of neon green that ignite as the stone is turned—classic cantera material where bright opal fills natural cavities in volcanic host rock.
7.585 total carats / 14.3 x 12.9 x 6.8 mm
Estimate: $145 - $165