Labradorite 3mm Round Faceted AAA Grade - 15-16 Inch Chalcedony Biotite is a name used

Biotite is a name used for a large group of black mica minerals that are commonly found in igneous and metamorphic rocks

most natural topaz is colorless

Distinctive for its purple-and-gray tones

It is a variety of the silicate Spodumene

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

Labradorite 3mm Round Faceted AAA Grade - 15-16 Inch Chalcedony Biotite is a name usedLabradorite 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.