A fabulous high quality water clear square back quartz crystal cluster from Arkansas that has three time-link activations, a penetrator and a key area on the top of one point. This cluster is called a square back because it formed on top of a calcite bed which later weathered out leaving four square cavities on the bottom. There is a natural contact area on the back of one point. Stands up on its own. Weighs 5.5 oz. Size: 4 1/4" long x 2 1/2" wide x 2" tall.