A magnificent high quality very clear square back quartz crystal cluster from Arkansas that has a larger double terminated crystal at one end and a few white Adularia crystals attached. This cluster is called a square back because it formed on top of a calcite bed which later weathered out leaving one large square cavity on the bottom. There is a small amount of matrix on the side by the bottom. Stands up on its own. Weighs 13.5 oz. If shipped internationally, there will be additional shipping cost. Size: 5" long x 3 1/2" wide x 2 1/2" tall. You will receive this exact item in the picture shipped from our small American business.