Vote for your favorite mineral in #MinCup26! - Quartz vs. Asagiite
It's a classic vs a newbie as the most common named mineral in the crust Quartz is up against an exceedingly-rare sea foam-green mineral discovered just a few years ago Asagiite.
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Tourmaline from
Dalong Sn deposit, Zhenkang County, Lincang, Yunnan, China


Locality type:Deposit
Classification
Species:'Tourmaline' (not an IMA approved species)
Formula:AD3G6(T6O18)(BO3)3X3Z
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Tourmaline data
Locality Data:Click here to view Dalong Sn deposit, Zhenkang County, Lincang, Yunnan, China
Data Identifiers
Mindat Occurrence Record ID:1847837
Long-form Identifier:1:3:1847837:6
GUID (UUID V4):0
Nearest other occurrences of Tourmaline
76.4km (47.5 miles) ⓘYunling tin deposit, Yongde County, Lincang, Yunnan, China
87.4km (54.3 miles) ⓘHuangliangou Be-Nb-Ta pegmatite deposit, Longling County, Baoshan, Yunnan, China
References
Wang, Hai; Tang, Weijun; Sun, Fuzhou; Wang, Dazhao; Zhen, Shimin; Wang, Xiaoyao; Liu, Yuhang; Wang, Wenzheng; Luo, Wei; Xie, Jiacheng (2025) Late Cretaceous tin mineralization at the Dalong deposit in the Baoshan district (NW Yunnan), SW China: Constraints from cassiterite U-Pb geochronology and trace element geochemistry. Ore Geology Reviews, 187. 106996 doi:10.1016/j.oregeorev.2025.106996
 
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