標 本 名: | バストネサイト / バストネス石 (Bastnaesite- Ce)
| 化学組成: | (Ce,La)(CO3)F | サ イ ズ: | | 重量: | | 透明: | | 数量: | | 産地: | Zagi Mountain (Zegi), Mulla Ghori, Khyber Agency, Federally Administered Tribal Areas (FATA), パキスタン (Pakistan) | This a cutting grade bastnaesite crystal, with a very good transparency for this species and a fine idiomorphic crystal shape, showing on top a basal pinacoid. The color change is strongly visible in changing from brownish yellowish hues in daylight to keep orangey brown in incandescent light. Beautiful specimen from Zagi- Mountains.
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