corundum, quality.10, Burma.12, gems

The Mogok area of Myanmar (Burma) has long been noted for producing some of the world's finest blue sapphires. Burmese sapphire mining is reviewed, along with some of the most important blue sapphires from Burma, particularly those of large size. Mention is also made of some giant corundum crystals from other localities. The article contains sections based upon eyewitness accounts and discussions with some of Mogok's long-time gem dealers.