Rocks Slabs and Specimens › Tampa bay fossil agatized coral Image 1 of 5 Image 2 of 5 Image 3 of 5 Image 4 of 5 Image 5 of 5 Tampa bay fossil agatized coral $325.00 Unpolished rough, extraordinarily large, rare black color agate, 9.5 lbs, 13.5 x 8 x 2.5-5 inches. Add To Cart Added! Unpolished rough, extraordinarily large, rare black color agate, 9.5 lbs, 13.5 x 8 x 2.5-5 inches. Reviews Reviewer Name Review Date Star Rating Description Posted on Etsy Product Show More