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Search for specimens: View all muscovite specimens from Wushan Spessartine Mine, China
Wushan Spessartine Mine is listed at Tongbei, Yunxiao County, Zhangzhou, Fujian Province, China, at approximately 23.90611° N, 117.19806° E. The locality name is now entrenched in the mineral trade, but it is best understood as a commercial and collecting label for the TongbeiâWushan area rather than a single sharply bounded underground mine. The âWushanâ name refers to Wu Mountain near Tongbei, while many specimens came from small workings, quarry faces, and miarolitic pockets in the surrounding granitic terrain.
Geologically, the specimens come from miarolitic cavities in granite and pegmatitic zones within a southeastern coastal Cretaceous granitic belt extending through Guangdong, Fujian, and Zhejiang. The Wushan granite is part of an aluminous A-type granite setting; published summaries place its age in the Late Cretaceous, roughly around 92â86 Ma, with crystallization temperatures for related pegmatitic host rocks reported in the range of about 505â532°C. These cavities produced a classic granitic assemblage: microcline, smoky quartz, spessartine, muscovite, fluorite, helvine, opal-AN, pyrite, beryl, topaz, and accessory species.
The production history is tangled because the earliest trade labels were not stable. Chinese spessartine specimens with smoky quartz and feldspar appeared on the market in 1998 under a Guangdong locality; by the end of 2001 dealers were giving Fujian and Yunxiao as the correct area. Tongbei became the collecting and trading center, and the orange spessartine-on-matrix specimens quickly became among the most recognizable Chinese mineral specimens of the modern era.
Access is not a casual field-collecting matter. Published locality notes describe systematic specimen recovery around Tongbei as tied to granite quarrying, with specimen extraction outside legitimate granite-building-material work described as illegal. Wushan is also described in locality notes as a protected national park, with collecting from exposed granite prohibited. For collectors, the practical implication is simple: present-day specimens should be evaluated as market specimens from earlier or dealer-held production, not as material to be field-collected by visitors.
Important production appears to have been concentrated from the late 1990s through the early-to-mid 2010s, with later market comments repeatedly noting reduced availability. A Fujian mineral-diversity paper records that the Tongbei mine had ceased production by 2016, based on personal communication from Shen Hong Tau of Wuhan University of Technology. Fine pieces still circulate, but much of the attractive material now offered is older stock, collection recycling, or dealer inventory from earlier finds.## ããããã®é²æ¯ã®ç¹åŸŽ? ããã
Wushan Spessartine Mine, China ã®é²æ¯ïŒã ã¹ã³ãããïŒã®ç¹åŸŽ
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