Topaz with Opal

Tepetate, Municipio Villa de Arriaga, San Luis Potosí  Mexico

Specimen size: 3.4 × 3.1 × 2.1 cm = 1.34” × 1.22” × 0.83”
Main crystal size: 2.2 × 0.6 cm = 0.87” × 0.24”