標 本 名: | コランダム (鋼玉), サファイア (Corundum, Variety: Sapphire)
| 化学組成: | Al2O3 | サ イ ズ: | | 重量: | | 透明: | MI2 (moderate included) SI2 | 数量: | | 産地: | Mogok Stone Tract, Mandalay Division, ビルマ(ミャンマー) Burma (Myanmar) | This is a fully untreated blue Sapphire from Mogok. The color is 100% natural, this is easily seen by inspecting the unaltered internal inclusions. The stone is hosting one “silk-nest” which is slightly visible to the naked eye. Nevertheless the stone shows a beautiful deep blue natural coloration which is hardly found nowadays! 
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