This specimen came from a dealer from Michigan, who traded it to us for some petrified wood. He had some of the cleanest copper we have seen, and it is a popular item in our shop. It measures very roughly 4.25" x 2.5" at its longest points and 1" thick, and weighs about 11 oz. Enjoy adding it to your collection, giving it as a gift to a "budding rock hound" friend, or as part of your classroom decor. It is thard to show the gleam of the metal in the pictures, but is very bright. I am happy to combine items to save you money on shipping, should you win more than one auction. Please email me with questions.