An amazing boulder opal specimen has ironstone veined with opal that demonstrates the full spectrum play of color. While the specimen could be cabbed for sections, this piece has so far been preserved in a natural state, probably because it is naturally so highly aesthetic. Opal in the gemological world is valued by the amount and size of the color areas as well as the range of spectrum of colors seen. Due to the wavelength frequency, red is the hardest color to obtain in opal and for a full spectrum of opal to remain uncut is fantastic. The play of color in our photographs is almost better captured in the reflections on the glass than in the piece itself.
5.3 x 5.4 x 2.7 cm