This is a heart of a geode with crystals making rays into the open space. And I was told that the yellow area is gold ore but I sure don't know. Still a lovely and different pendant that would make a special gift! It has really good karma and would still the spirits!!? The chain is 20 inches and has a sterling frame that is marked on the bale. There is a star opening so you can through the geode. It will come in a velvet bag and gift box.