Part of my science jewelry collection. Inspired by Legionella pneumophila bacteria colonies on BCYE (Buffered charcoal yeast extract) agar Petri dish (see the last picture). The pendant in this necklace is created out of glass (by me) using fused glass technique. The different shades of glass are cut, shaped, layered and fused multiple times in a kiln. Dimensions: ~ 28 mm x 18 mm (1.1" x 0.71") The bail is sterling silver. The included sterling silver chain is a sturdy, elegant, and comfortable chain. It is available in 45 cm (18").