Labradorite 20mm AAA Grade Coin Cabochon 7HP as Obsidian can be formed

as Obsidian can be formed into a blade many times sharper than steel surgical blades

there may not be a more beautiful blue-and-brown combination than that of Terra Agate

bluish green

Unlike digital or electric calipers

There are 37 different mica minerals

Labradorite 20mm AAA Grade Coin Cabochon 7HP as Obsidian can be formedLabradorite 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. Sold