標 本 名: | 鉱物の一覧
| 化学組成: | Al6.5-7(BO3)(SiO4)3(O,OH)3 | サ イ ズ: | | 重量: | | 透明: | | 数量: | | 産地: | Ohngaing (Ohn Gaing; Ohn Kai) village, near Mogok, ビルマ(ミャンマー) Burma (Myanmar) | Well here you get a rare transparent dumortierite crystal one side shows crystal faces the other as polished in order to take the refractive index. A true rare stone found in very limited numbers! Here you have the chance to get one!
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