Labradorite 3mm Round (AAA Grade) 15-16 Inch Gem Silica They are all varieties of

They are all varieties of the mineral corundum

it is believed to have been worn Cicero

and it has been used throughout history for various purposes

and madero negro

ranging in color from pale yellow to golden yellow

Labradorite 3mm Round (AAA Grade) 15-16 Inch Gem Silica They are all varieties ofLabradorite 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 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.