Labradorite 12x20-15x30mm Rounded Rough Collar - 15-16 Inch

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Description

Labradorite 12x20-15x30mm Rounded Rough Collar - 15-16 InchLabradorite 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.

It ranges from almost completely transparent to an almost opaque brownish to gray crystal

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

pink and golden mottling and spots within the primarily black stone

potassium or barium

as well as translucent and iridescent

Rhyolite is a volcanic

At that time yellowish gems were called "topaz" in many parts of the world

mostly known for its green varieties

iron or manganese imperfections

Only a small percentage of Wampum shells have deep layers of purple and are thick enough to make beads

and veins within the tan

Most hemimorphite is found in the rocks above and surrounding zinc deposits