標 本 名: | 電気石 - ショール (鉄電気石) / 石英 / 金雲母/ 曹長石 (Tourmaline, Variety: Elbaite - Schorl / Quartz / Albite)
| 化学組成: | Na(Li1,5AL1,5)Al6(BO3)3[Si6O18](OH)3(OH) / SiO2 - NaFe3+2Al6(BO3)3[Si6O18](OH)3(OH)/ NaAlSi3O8 | サ イ ズ: | | 重量: | | 透明: | | 数量: | | 産地: | Stak Nala, Haramosh Mts., Skardu District, Baltistan, Northern Areas, パキスタン (Pakistan) | You get a black- bluish green Tourmaline crystal intergrown with quartz and albite. The crystal discloses a flat undamaged termination and another crossing twin attached. The quartz is doubly terminated and has only a small damage. Some idiomorph albite crystals are present as well.
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