標 本 名: | 緑柱石 , アクアマリン (Aquamarine)
| 化学組成: | Be3Al2Si6O18 | サ イ ズ: | 57,4 x 41,6 x 34,1
クリスタル: 38,5 x 19,0 x 17,2 mm | 重量: | | 透明: | | 数量: | | 産地: | Shigar Valley, Skardu District, Baltistan, Northern Areas, パキスタン (Pakistan) | An interesting double terminated aquamarine crystal, mainly covered by Cleavelandite. Only from one side you can see the clear interior of the Beryl there are no damages visible and both sides show the undamaged pinacoid face. The cleavelandite itself is covered by tiny olive-green to blackish tourmaline crystals. Interesting specimen from the Shigar Valley.
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