Turquoise #289 | Royston Tourmaline The Color: Black-Green

The Color: Black-Green

though we suggest to avoid putting natural pieces in an ultrasonic cleaner as some stones can be brittle

The Origin: Zaire

The Weight: 321

The Weight: 69

Turquoise #289 | Royston Tourmaline The Color: Black-GreenThe Stone: Turquoise with Cuprite natural stabilized The Weight: 19. 25 carats The Origin: Royston District, Nevada The Cut: Oval Cabochon Cut stone measurements: 21. 70mm x 16. 67mm x 7. 71mm 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, and rarity.