Labradorite Plated 10mm Round Faceted - 15-16 Inch - CLEARANCE New Rough Nuggets and Chips Opals are hydrated amorphous forms

Opals are hydrated amorphous forms of silica

fluorannite

its variations seem to depict landscapes and other images

Garnet was used as far back as the Bronze Age

which receive their color from trace amounts of chromium

Labradorite Plated 10mm Round Faceted - 15-16 Inch - CLEARANCE New Rough Nuggets and Chips Opals are hydrated amorphous formsLabradorite 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.