標 本 名: | コランダム (鋼玉), トラピチェ・サファイア (Trapiche Sapphire)
| 化学組成: | Al2O3 | サ イ ズ: | 10,8 x 4,2 x 3,4 & 7,1 x 1,7 x 1,9 mm | 重量: | | 透明: | | 数量: | | 産地: | Mogok Stone Tract, Mandalay Division, ビルマ(ミャンマー) Burma (Myanmar) | This is a rare bipyramidal transparent trapiche sapphire from the Mogok area. The crystal shows along the hexagonal edges intense blue lines marking the typical trapiche pattern. The crystal displays a thin termination while the base seems to be at least partly terminated with deep blue coloration. The other crystal is small but fully intact and with great gemmyness.
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