Tiny hexagon mosaic tiles of abalone make up the round cabochon in the silver filigree style pendant hanging from a strand of abalone/paua shell dimes accented with blue dyed freshwater pearls mixed with pewter dimes, silvered glass beads and light blue iridescent glass seedbeads.
Clasp is a silvertone pewter toggle
Approx. 16"
Pewter beads are a Zinc alloy over copper that may (or may not) change color with wear - it seems to depend on body chemicals individual to each person
If you Google the phrase Poseidon's Moon you will get images of beautiful full moon rises over the temple of Poseidon in Greece