Overall Dimension (including bail): 2.0 x 0.7 x 0.2 inches
Inner Bail Diameter: 3 mm
Weight: 3.7 grams
Serial Number: p31291
Chalcedony is the general name for a variety of colored quartzes, many of which have a creamy appearance and luster. The gemstones given the name chalcedony are usually white to bright blue, while other colors have been given separate names--for instance, black onyx, green chrysoprase, and orange carnelian.