標 本 名: | 灰重石 (Scheelite)
| 化学組成: | Ca[WO4] (approx. 3 wt% ReO3) | サ イ ズ: | | 重量: | | 透明: | | 数量: | | 産地: | Koksha Valley (Kokscha; Kokcha), Badakhshan (Badakshan; Badahsan) Province, アフガニスタン (Afghanistan) | This is a rare scheelite floater crystal with a high content of rhenium-trioxide. The crystal displays partly some transparent areas and is fully intact .
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