Mineral: | Turmalina variedad: Dravita
| Fórmula química: | Na(Mg3)Al6(Si6O18)(BO3)3(OH)3(OH) | Tamaño: | 13,5 x 8,3 x 5,5 - 4,5 x 3,1 x 3,2 mm | Peso: | | Transparencia: | | Número de piezas: | | Origen: | La mina de Pyan Gyi (oeste de Pyan Pyit), al noreste de Mogok, Birmania (Myanmar) | Here you get only doubly terminated Uvite crystals. The pieces disclosing color zoning , caused by different vanadium (color agent) concentration during the epitaxy. One crystals even has only on small green part except that the tourmaline is colorless. Interesting tourmaline lot.
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