Labradorite 3mm Round Faceted AAA Grade - 15-16 Inch Chalcedony and this phenomenon is thought

and this phenomenon is thought to be due to impurities of yttrium or organic matter within the crystal lattice

This stone has not been dyed or enhanced in any way

Biotite was named in honor of the French physicist Jean-Baptiste Biot

it is believed to have been worn Cicero

Labradorite 3mm Round Faceted AAA Grade - 15-16 Inch Chalcedony and this phenomenon is thoughtLabradorite 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.