Stone(s): 2 pieces genuine fire agate (33 x 21 mm)
Overall Dimension of Each (including hooks): 1.4 x 0.9 x 0.2 inches
Back Type: Clip-on
Weight: 19.5 grams
Stamp/Mark: Starborn, 925
Serial Number: e21122
Agate is a striped chalcedony quartz that forms in layers and in a wide variety of colors and textures. An individual agate forms by filling a cavity in a "host" rock. As a result, agate often is found as a round nodule, with concentric bands. In ancient times it was said to quench thirst and guard against fever, and agate bowls were very popular in historical Europe.