標 本 名: | コランダム／鋼玉 (Corundum, Variety: Sapphire)
| 化学組成: | Al2O3 | サ イ ズ: | | 重量: | | 透明: | | 数量: | | 産地: | Minh Tien Mine, Luc Yen ("Yuang Yang"; "Yueng Yang"), Yenbai (Yen Bai) Province, ベトナム (Vietnam) | Unusual greenish blue sapphire crystal from Vietnam, the specimen has a very unique surface with kind of “melted luster”. On side is flat terminated the other one shows partly recrystalisation.
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