Mineral: | Espinela
| Fórmula química: | MgAl2O4 | Tamaño: | 38,9 x 8,8 x 8,3 & 17,6 x 8,8 x 17,6 mm | Peso: | | Transparencia: | | Número de piezas: | | Origen: | La mina de Li Chaung Gyi cerca de aldea de Ohngaing (Ohn Gaing; Ohn Kai), al noreste de Mogok, Birmania (Myanmar) | These are two pseudomorph trapiche spinel crystal the bigger crystal shows fully intact crystal shape the small one is also undamaged with two flat ends. Also you can see at the smaller crystal a crack parallel to the c-axis which was caused by the increasing volume during the corundum substitution by spinel. Both crystals are covered by tiny graphite lamellas.
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