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: | Mine near the village Kollane, Embilipitiya (Embilipitya; Ambilipitiya), Province of Sabaragamuwa, スリランカ (Sri Lanka) | Unheated blue Sapphire crystal from Sri Lanka with at least three twinned crystal attached. Beside some natural hollows the habit is fully intact and not damaged. Beautiful twinned crystal
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