I made the necklace for my niece. I think the circular stone is agate strung with rubber tubing. The dangle is an amber-like stone. It may be amber for all I know since I recreated this necklace from pieces on a vintage necklace.
Even though my niece's name is not Holly, it just seemed appropriate to call the necklace by that name given the Christmas season. Yes, I said Christmas. It's not a bad word, it's what I celebrate. I know, it's not politically correct and I don't care. Merry Christmas!!!