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: | Mines around Kahawatta, Ratnapura District, Sabaragamuwa Province, スリランカ (Sri Lanka) | Sapphire in matrix remained very rare in Sri Lanka here you get a small elongated prismatic crystal with partly good transparency embedded in a nepheline and phlogopite matrix. Fine reference specimen from this locality!
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