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: | 102,9 x 73,4 x 39,9
クリスタル: 30,1 mm | 重量: | | 透明: | | 数量: | | 産地: | Wellawaya, Uva Province, Sri Lanka | Sapphire in matrix remained very rare in Sri Lanka here you get a small elongated prismatic crystals with partly good transparency embedded in a biotite- nepheline matrix. Fine and old reference specimen from this locality!
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