標 本 名: | スピネル / 方解石 (Spinel / Calcite)
| 化学組成: | MgAl2O4 / CaCO3 | サ イ ズ: | 60,5 x 34,5 x 33,5 x
クリスタル: 6,0 x 6,5 mm | 重量: | | 透明: | | 数量: | | 産地: | Pyan Pyit (Pein Pyit) mine, northeast of Mogok, ビルマ(ミャンマー) Burma (Myanmar) | Here you get a spinel twin crystal in matrix. If you look careful, you can spot three reversed triangle crystals, or a so called ”Star of David” spinel, the lower part is sadly covered by calcite otherwise the star pattern would be better visible. The crystal is free of blemish and shows fine luster and good transparency. This kind of twin is rarely found in matrix
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