標 本 名: | エルバイト(トルマリン) インディゴライト (Indicolite)
| 化学組成: | Na(Li1,5AL1,5)Al6(BO3)3[Si6O18](OH)3(OH) | サ イ ズ: | | 重量: | | 透明: | | 数量: | | 産地: | Darra-i-Pech (Pech; Peech; Darra-e-Pech) Pegmatite Field, Nangarhar (Ningarhar) Province, アフガニスタン (Afghanistan) | A spray of fine intergrown indigolite crystals. Except two tiny terminations all other crystal show perfectly preserved termination. The base of the specimen is fully crystallized as well. Great Tourmaline specimen from Afghanistan!
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