Sourced from the old opal fields of La Trinidad in Querétaro, Mexico — a district where rhyolite flows once trapped silica-rich fluids, creating the matrix-style opal known locally as “cantera.” The area’s mining tradition stretches back more than a century, making specimens like this part of a long cultural and mineral history
Cabochons are shown for reference only
63 x 47 x 27 mm
Estimate: $135 - $150