標 本 名: | 電気石 (Tourmaline), Variety: ウヴァ石 (バナジウム) (ベルデライト (Verdelite))
| 化学組成: | (Ca,Na)(Mg,Fe2+)3(Al, V)5Mg(BO3)3Si6O18(OH,F)4 | サ イ ズ : | | 重量: | | 透明: | | 数量 : | | 産地: | Pyan Gyi mine (West of Pyan Pyit), northeast of Mogok, ビルマ(ミャンマー) Burma (Myanmar) | Normally these 電気石 (Tourmaline) Variety: forms more rose like here you get a cluster of trigonal plates grown into each other. Just a tiny part shows some crystalline fracture faces on the base everything else is terminated.
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