Turquoise #157 | Pinto Valley Opal stone measurements: 12mm x 10mm

stone measurements: 12mm x 10mm x 7

parabolic fire pattern

and blue-green pieces are harder

6mm (from profile)

Turquoise #157 | Pinto Valley Opal stone measurements: 12mm x 10mmThe Stone: Turquoise natural stabilized The Weight: 10. 52 carats The Origin: Pinto Valley Mine, Arizona The Cut: Oval Cabochon Cut stone measurements: 17. 2mm x 14. 8m x 4. 7mm The Color: Blue with Black matrix About Turquoise: What once was regarded a common byproduct of copper mining is now realized to be a rather scarce gem. Typically found in or near copper mines around the world, turquoise from each locality differs in color, quality, character,