標 本 名: | 電気石, エルバイト (リチア電気石) (Elbaite) / 雲母, 白雲母 (Mica, Variety: Muscovite) / 石英 (Quartz)
| 化学組成: | Na(Li1,5AL1,5)Al6(BO3)3[Si6O18](OH)3(OH) / KAl2(Si3Al)O10(OH,F)2 / SiO2 | サ イ ズ: | | 重量: | | 透明: | | 数量: | | 産地: | Mine close to Letpanhla village near Mount Pyin Kyi Thaung, Singu Township, Mandalay Division, ビルマ(ミャンマー) Burma (Myanmar) | A fine example of moors head tourmaline from the Letpanhla mine. One crystal shows the flat moors head termination the other crystal even two sides with black terminations. One side is basal while the other is trigonal terminated! A few smaller polychrome tourmalines, mica and dozen of quartz crystals are attached as well.
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