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) | A fine sapphire crystal with good crystal striation double termination and a parallel intergrowth with another twin crystals, which is hosting another small sapphire crystals, which is penetrating both main crystals. Fine piece from Burma
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