Turquoise - Sterling Silver Opal can naturally contain up

Opal can naturally contain up to 20% water

& NaCa4(Si27Al9)O72·28(H2O)

Peridot is a variety of olivine

This specimen is referred to as a double terminated diamond quartz

Turquoise - Sterling Silver Opal can naturally contain upThis ring features a beautiful two toned turquoise stone with a "snakeskin pinstripe" design on the shank. Size: 8 Stone Size: 10 x 12 mm Turquoise is a hydrated mineral that contains both copper and aluminum. It is the inclusion of these metals that causes the blue green color. Turquoise has had many names over the years including the Greek word "callais" and the Aztec word "chalchihuitl." However, its current name comes from the french word