標 本 名: | 電気石, ショール (鉄電気石) (Tourmaline, Variety: Schorl)
| 化学組成: | NaFe3+2Al6(BO3)3[Si6O18](OH)3(OH) | サ イ ズ: | | 重量: | | 透明: | | 数量: | | 産地: | Shigar Valley, Skardu District, Baltistan, Northern Areas, パキスタン (Pakistan) | Bent schorl crystal with a few fine hair cracks, partly healed by small overgrown parts. One end is normal terminated the other side had enough time to partly recrystallized after being broken by the tectonic force.
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