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: | | 数量: | | 産地: | Mogok Stone Tract, Mandalay Division, ビルマ(ミャンマー) Burma (Myanmar) | Very interesting mainly colorless sapphire crystals with blue spots. The crystal is single terminated while the other end shows 2/3 termination and some crystalline fracture . Another small crystalline fracture area is visible at one prism side. The interior displays at some parts good transparency and is hosting some silver white silk. The crystal probably show asterism if cut into a cabochon. Unusual big piece with gemmy areas!!
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