標 本 名: | コランダム (鋼玉), ルビー (Corundum, Variety: Ruby)
| 化学組成: | Al2O3 | サ イ ズ: | 28,8 x 17,7 x 14,1
クリスタル: 11,8 x 6,4 mm | 重量: | | 透明: | | 数量: | | 産地: | Jegdalek (Jagdalek; Jagdalak; Jagdalik) Ruby Mine, Sorobi District, Kabol (Kabul) Province, アフガニスタン (Afghanistan) | Here you get two fine terminated ruby crystals in matrix. Both crystals are fully intact with typical growth marks and striation. Between the crystals you can see a small rutile crystal and another attached at the base of the matrix. Good specimen from the Jegdalek mine.
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