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: | 14,3 x 11,2 x 7,0 & 10,6 x 2,6 x 2,6 mm | 重量: | | 透明: | | 数量: | | 産地: | Mogok Stone Tract, Mandalay Division, ビルマ(ミャンマー) Burma (Myanmar) | You get one doubly terminated sapphire crystal and one bigger piece with gemmy transparency great luster a typical colorless to bright blue color zoning. One side is pyramidal terminated but with some damaged parts, the other shows undamaged flat termination with trapiche pattern. Also three twin crystals are attached. The small sapphire is bi-pyramidal with one pencil like termination and one flat side with strong blue trapiche pattern; you can see the blue zoning concentrating on the outer edges of the hexagonal shape. Fine specimen not often found!
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