Our Bismuth Chunk is sourced directly from the Chenzhou Bismuth Group where it is produced and is 100% “virgin” metal (not recycled). We sell this metal by the 5lb pound increment, so if you need 10lbs, simply add a quantity of 2 to your cart. Be sure to see our bulk discounts for certain quantity levels if you would like to save money per pound. If you are interested in making a very large order, please contact us directly for pricing and availability. All metal shipments come with a certificate of analysis. * Atomic Number = 83 | Melting Point (F) = 524 | Atomic Mass= 208.98 | Boiling Point (F) = 2642 | Density (g/cm3) = 9.80 |