標 本 名: | 電気石 (Tourmaline), Variety: リチア電気石 (Elbaite) | 化学組成: | Na(Li1,5AL1,5)Al6(BO3)3[Si6O18](OH)3(OH) | サ イ ズ : | | 重量: | | 透明: | translucent - transparent | 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 twin piece with black termination faces and a small imprint of a former 結晶 crystal. The prism faces as well as termination are full intact no damages and the side disclosing striation with good luster, as well as other tiny 結晶 crystals. Interesting twin from the new mine.

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