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) | Here you find several tourmaline crystals in matrix of two different types; one kind discloses a moors head termination with good prismatic shape and luster. While the other crystals are looking secondary altered, some of the crystals also display a moors head but the prismatic shape seems to interrupted into smaller parts. And some parts of the surface also show black coloration. The whole matrix is made of muscovite crystals. Interesting specimen!
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