標 本 名: | スピネル (Spinel)
| 化学組成: | MgAl2O4 | サ イ ズ: | | 重量: | | 透明: | | 数量: | | 産地: | Mines around Kahawatta, Ratnapura District, Sabaragamuwa Province, スリランカ (Sri Lanka) | Here you get fairly big spinel crystal from Sri Lanka. the crystal is composed out of three twinned crystals, one is twinned after the spinel law the other is normal parallel twinning. at the peripheral areas the crystal shows partly transparency or translucency. The surface of the crystal is mainly not damaged and discloses typical growth marks. Good reference specimen from this locality.
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