標 本 名: | スピネル (Spinel)
| 化学組成: | MgAl2O4 | サ イ ズ: | | 重量: | | 透明: | | 数量: | | 産地: | Pyan Pyit (Pein Pyit) Mine, northeast of Mogok, Shan State, ビルマ(ミャンマー) Burma (Myanmar) | This is a true rarity for a spinel crystal, a very sharp round cyclic twin reminding on chrysoberyl twins. A real cyclic shape with two minor damages along the thin outline of the crystal, nevertheless this piece is another demonstration of the richness in variation of this mineral species. But those shapes rarely occurring, especially perfect cyclic. Furthermore you get good luster and medium to good transparency and strong red coloration. A must for a spinel collector.
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