Sac Valley Auctions

The Rock Tumbler works, but needs a new rubber belt. It spins the included plastic barrel, and some polishing abrasives are included, along with some rocks that have been polished. The large upright piece and the two large pieces in the top left of the main pics appear to be petrified wood. The long crystallized piece along the front is steel with crystals, that was in the ocean for a long time. Also includes many other types of rocks.