I cannot tell you what this piece of art is made of, but it weighs 4 pounds--8 ounces. Solid black, WOULD LOOK AMAZING ON ANYONE'S MANTLE OR COFFEE TABLE. I had it on my bookshelf from when I used to work at Coldwater Creek (that's where I originally purchased it in 2000'ish). Again, not sure what the core is made of. It's dimensions are: 10" tall, 9" across (from widest part of the heart-end-to-end). 3" Depth and again, 4-lbs - 8oz. I cannot see any damage at all and again, would make a lovely statement piece in any room in your home.