標 本 名: | 電気石 / 石英 / 金雲母 (Tourmaline, Variety: Elbaite / Quartz / Phlogopite)
| 化学組成: | Na(Li1,5AL1,5)Al6(BO3)3[Si6O18](OH)3(OH) / SiO2 / KMg3(Si3Al)O10(F,OH)2 | サ イ ズ: | | 重量: | | 透明: | | 数量: | | 産地: | Shigar Valley, Skardu District, Baltistan, Northern Areas, パキスタン (Pakistan) | Here you several tourmaline crystal with schorl base and green topping and flat or trigonal termination. In between this cluster you find quartz and phlogopite crystal. Except a tiny dame on crystal all crystals are fully undamaged.
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