Mexican Cantera Opal with vivid flashes of green and blue fire set naturally within its rhyolitic host rock. Unlike free-form opals, cantera opals are cut with portions of the matrix intact, creating a striking contrast between the bright play-of-color and the earthy volcanic stone.
The town of Magdalena, Jalisco, is one of Mexico’s most famous opal-producing regions, known for yielding high-quality fire and cantera opals for over a century. Collectors prize these stones not only for their play-of-color but also for their natural presentation, which highlights the opal exactly as it formed in the volcanic flows.
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24.970 total carats / 22.2 x 18.2 x 9.3 mm
Estimate: $225 - $245