Mineral: | Espinela
| Fórmula química: | MgAl2O4 | Tamaño: | 29,5 x 10,7 x 9,6 & 14,1 x 13,9 x 3,8 mm | Peso: | | Transparencia: | translúcido - subtranslúcido | Número de piezas: | | Origen: | Namyarseik (Namya), el estado de Kachin, Birmania (Myanmar) | Here you get two pseudomorphosis , spinel after corundum, more accurately spinel after bipyramidal sapphire crystal! The former Sapphire crystal was also a trapiche Sapphire, therefore the trapiche pattern remained even after the replacement. You can hardly find nice trapiche sapphire cabochons, but this one still discloses in transmitted light a good trapiche pattern and the crystal is fully covered with small spinel and some graphite lamella.
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