This is a select, above average quality specimen of a Prairie Agate from right here in The Black Hills of South Dakota.  This neat rock  measures approximately 10″ x  4 1/2″ x 3 3/8″ and weighs nearly 8 lbs.  This rock has a very unique pattern and design.  A little piece of magic from the Black Hills. Check how the rock comes alive when wet as seen in the last photo. Really, really cool!