標 本 名: | 電気石, エルバイト(リチア電気石) / 微斜長石, 曹長石 (Tourmaline, Variety: Elbaite (Rubellite) / Feldspar, Variety: Microcline, Plagioclase: Albite)
| 化学組成: | Na(Li1,5AL1,5)Al6(BO3)3[Si6O18](OH)3(OH) / KAlSi3O8 / NaAlSi3O8 | サ イ ズ: | 99,0x 63,0 x 52,155,3 x 46,0 x 23,3 mm | 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) | Fine tourmaline crystals on feldspar apart from one edge all crystals are fine terminated and intact. Some show recrystallization some are overgrown by albite crystals. Smaller quartz crystals are also present. A very fine specimen from the Letpanhla mine.
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