Dims: 2.1 x 1.7 x 0.7" (5.3 x 4.3 x 1.8 cm)
Wt: 1.23 oz. (34.9 g)
San Juan del Rio, Mexico
This large thumbnail specimen consists of a few nodules of "Fire Opal" in an opalite matrix. These nodules do not exceed 0.5" (1.3 cm) in diameter, and most are dull and at least partly eroded. One, however, is complete and made up of colorless opal. It shows beautiful and colorful iridescence- it is predominantly blue and green in coloration, but some yellow and red hues are visible.