This Merlinite has an approximate length of 1.5", an approximate width of 1.0", and weighs approximately 1.4 oz. There is a second stone that is approximately 1.5" in length, 1" in width and weighs approximately .9 oz.  There is a third stone that is approximately 1 1/8" in length, 5/8" in width and weighs approximately .4 oz.