Mineral: | Corindón variedad: Rubí
| Fórmula química: | Al2O3 | Tamaño: | | Peso: | | Transparencia: | | Número de piezas: | | Origen: | La mina de Tien Minh, Luc Yen ("Yuang Yang", "Yueng Yang"), Provincia, de Yenbai (Yen Bai), Vietnam | This is fine bipyramidal and doubly terminated ruby crystal from Vietnam. The crystal shows a very good habit and beautiful translucent color. No damages just some mica crystals are attached. The crystal faces disclosing a fine luster with crystals striation as well as polysynthetic twinning.
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