Xuebaoding und Pingwu, Sichuan, China: Bergbau auf scheelit, kassiterit, und beryll
| Reviews and Highlights | Quantum Science | Molecular and Soft-matter | Ultrafast Nano-optics and Nanophotonics | Mineralogy and Geochemistry |
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Berthold Ottens und Markus B. Raschke
Lapis 11, 10 (2019).
PDF Abstract
The Xuebaoding Mountain with its W-Se-Be deposits has emerged as a world-class specimen locality for scheelite, cassiterite, and beryl since its discovery in the 1950s. Situated high above tree line on the northeastern edge of the Tibetan Plateau, the mineralized muscovite-rich quartz veins intruding Triassic metamorphic schist and carbonate rock are of a greisen-type associated with small alkali granite intrusions. Major gem-grade scheelite, beryl, and cassiterite are found with minor K-spar, quartz, fluorite, calcite, and rare Sn-bearing minerals mushistonite, kësterite, and others. Difficulties in access of this remote locality above 4200 m have long limited systematic research of its geology and mineralogy. I will discuss recent progress and new insight into the mineralogy which resolve a number of mysteries surrounding this deposit.