A wonderful square back lemon healer quartz crystal cluster from Arkansas that stands up on its own. This marvelous cluster gets its name from the many square cavities on the bottom where the mineral calcite has weathered out. This rare type of crystal only comes from the Collier Creek Mine in Montgomery County, AR. Weighs 6 oz. Size: 3 3/8" long x 2" wide x 2 1/2" tall.