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: | Ratnapura, Province of Sabaragamuwa, スリランカ (Sri Lanka) | Bipyramidal colorless to blue Sapphire crystal from Sri Lanka. The specimen shows slightly rounded crystal points. the luster and striations is still clearly visible and transparency is partly very good. You get a 20 carat specimen which makes a good reverence piece.
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