Rocks Slabs and Specimens › Polished binghamite Image 1 of 4 Image 2 of 4 Image 3 of 4 Image 4 of 4 Polished binghamite $140.00 290 gm, 6.25 x 5.25 x .25 inches, polished both sides. Add To Cart Added! 290 gm, 6.25 x 5.25 x .25 inches, polished both sides. Reviews Reviewer Name Review Date Star Rating Description Posted on Etsy Product Show More