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: | LI2 (lightly included) (VS) | 数量: | | 産地: | Ratnapura, Province of Sabaragamuwa, スリランカ (Sri Lanka) | Beautiful colorless Sapphire crystal from Sri Lanka displaying the beautiful twinning of four single crystals. Except that tiny damaged at one point of the crystal, nothing is damaged whatsoever. Along the c-axes you can spot some asterism. A very attractive specimen with strong luster sharp crystal shape.
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