Labradorite 5x7mm Irregular Faceted Rondelle - 15-16 Inch Wonderstone The Zachery Process is the

The Zachery Process is the only turquoise process technology out there that is recognized as a natural treatment by the GIA in the US as well as international gem standards

as well as some occurrences of dark gray

a hydrous copper silicate

Usually found near copper deposits

Labradorite 5x7mm Irregular Faceted Rondelle - 15-16 Inch Wonderstone The Zachery Process is theLabradorite is remarkable for the way its aggregate layers refract light, creating iridescent flashes of blue, gold, pale green or copper red. This effect is known as labradorescence, taking its name from the stone. Labradorite is usually gray to green, dark gray, light gray or black. It was discovered in Labrador, Canada in 1770 and named for the area, though it is referenced as a highly revered stone in much older Inuit tribal legends.