Mineral: | Spinel
| Chemical Formula: | MgAl2O4 | Size: | | Weight: | | Transparence: | transparent - translucent | Quantity: | | Origin: | Pyan Pyit (Pein Pyit) Mine, northeast of Mogok, Shan State, Burma (Myanmar) | Fine spinel specimen to study the beginning of a cyclic spinel twin. You can see the octahedron shape and out of two crystal faces at one side a twin after the spinel law appears. If this would happen again two times you would get a perfect cyclic spinel twin. This crystal has fully intact faces and points with fine luster. Moreover you can see beside the spinel- law twinning a parallel twinning as well !
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