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< | サ イ ズ: | | 重量: | | 透明: | | 数量: | | 産地: | Chamachhu, Stak Nala, Haramosh Mts., Skardu District, Baltistan, Northern Areas, パキスタン (Pakistan) | Doubly terminated bi-colored tourmaline with albite and quartz crystals attached, also brownish blade shape crystal (maybe stibiotantalite) are visible at one prism side. The specimen has a perfect flat black end at one side with some albite attached and a green leeched angular terminated end at the other side. You get a fine doubly terminate specimen !
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