Mineral: | Crisoberilo , variedad: Alejandrita
| Fórmula química: | BeAl2O4 | Tamaño: | 52,9 x 28,8 x 19,4 x
cristal: 22,5 x 16,6 mm | Peso: | | Transparencia: | translúcido - transparente | Número de piezas: | | Origen: | Minas de esmeralda (Izumrudnye Kopi; Malyshevskoe deposit), Tokovaya river (Tokovaia river), Malyshevo, Ekaterinburg (Sverdlovsk), Ekaterinburgskaya (Sverdlovskaya) Oblast', Urales Medios , Urales, Rusia | Here you get a alexandrite crystal in mica schist from the famous type locality the Ural Mountains. The crystal displays typical striations and intact crystal faces. Part of the crystal is whitish and shows translucency, the other part is transparent and shows greenish color in daylight and light reddish to colorless color in incandescent light.
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