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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Biotite from
Jintonghu Cu-Au deposit, Zijinshan ore field, Shanghang Co., Longyan, Fujian, China


Locality type:Deposit
Classification
Species:'Biotite' (not an IMA approved species)
Formula:K(Fe2+/Mg)2(Al/Fe3+/Mg/Ti)([Si/Al/Fe]2Si2O10)(OH/F)2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Biotite data
Locality Data:Click here to view Jintonghu Cu-Au deposit, Zijinshan ore field, Shanghang Co., Longyan, Fujian, China
Data Identifiers
Mindat Occurrence Record ID:1763148
Long-form Identifier:1:3:1763148:2
GUID (UUID V4):0
Nearest other occurrences of Biotite
0.3km (0.2 miles) ⓘZijinshan Mine, Zijinshan ore field, Shanghang Co., Longyan, Fujian, China
1.7km (1.1 miles) ⓘDongnan Cu deposit, Zijinshan ore field, Shanghang Co., Longyan, Fujian, China
2.5km (1.6 miles) ⓘLuoboling Cu-(Mo) deposit (Luobuling Cu-(Mo) deposit), Zijinshan ore field, Shanghang Co., Longyan, Fujian, China
2.6km (1.6 miles) ⓘXinan deposit, Zijinshan ore field, Shanghang Co., Longyan, Fujian, China
49.8km (30.9 miles) ⓘHongshan pluton, Wuping Co., Longyan, Fujian, China
63.5km (39.5 miles) ⓘDapai Pb-Zn deposit, Yongding Co., Longyan, Fujian, China
70.8km (44.0 miles) ⓘJianshan Fe deposit, Pingyuan Co., Meizhou, Guangdong, China
71.1km (44.2 miles) ⓘLiaotianshan volcano, Xinluo District, Longyan, Fujian, China
73.4km (45.6 miles) ⓘYanbei Sn deposit, Xikengjing Sn ore field (Mikengshan Sn ore field), Huichang Co., Ganzhou, Jiangxi, China
75.0km (46.6 miles) ⓘShangwan Sn deposit, Xikengjing Sn ore field (Mikengshan Sn ore field), Huichang Co., Ganzhou, Jiangxi, China
References
Wang, Xuena; Wu, Chao; Xu, Chao; Xiao, Bing (2025) Geochronology, geochemistry, and Hf isotopic compositions of the Jintonghu porphyry Cu-Mo deposit in the Zijinshan ore district, SE China: Insights into the controlling factors on magma fertility. Ore Geology Reviews, 184. 106720 doi:10.1016/j.oregeorev.2025.106720
 
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