Just for the heck of it

Any idea what this famous nickel in Sudbury, ON would be worth if it was perfectly round and made from pure nickel? Answers should be based on nickel selling for US$14,000 per tonne and assume a diameter of 9.1 m with a thickness of 0.6 m. Please round to the nearest dollar then send your answers to rnoble@canadianminingjournal.com