Dendritic Opal with Crocheted BezelThis necklace features a dendritic opal (also called Merlinite) with a crocheted bezel. The accent beads are agate and block spinel. The chain is sterling silver. This necklace is 21 inches long and finished with a sterling lobster clasp. This is an older piece, from before I learned to silversmith. The silver is tarnished. I like how it looks, but if you would prefer it polished to shiny silver again, just let me know.