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) | This is a fine cutting grade cobalt spinel. This rough shows fine blue coloration so far visible under the microscope no inclusions.
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