標 本 名: | 緑柱石 , アクアマリン (Aquamarine) / 雲母, 白雲母 (Mica, Variety: Muscovite)
| 化学組成: | Be3Al2Si6O18 / KAl2(Si3Al)O10(OH,F)2 | サ イ ズ: | | 重量: | | 透明: | | 数量: | | 産地: | Nagar (Nagir), Hunza Valley, Gilgit District, Northern Areas, パキスタン (Pakistan) | Here you get six aquamarine crystals imbedded in a muscovite matrix. All crystals are fully intact and disclosing flat terminations. Even the rear side of the biggest crystal is fully crystallized! All crystals are twins as well, interpenetration twin you can spot at the periphery of the specimen. Fine fair priced piece from Pakistan!
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