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Biotite from
Ermi Cu deposit, Tonghua Co., Tonghua, Jilin, 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 Ermi Cu deposit, Tonghua Co., Tonghua, Jilin, China
Data Identifiers
Mindat Occurrence Record ID:1526973
Long-form Identifier:1:3:1526973:1
GUID (UUID V4):0
Nearest other occurrences of Biotite
21.2km (13.2 miles) ⓘChibaisong Cu-Ni-PGE deposit, Tonghua Co., Tonghua, Jilin, China
47.3km (29.4 miles) ⓘNancha Au deposit, Hunjiang District, Baishan, Jilin, China
47.9km (29.8 miles) ⓘFuxingcun Au deposit, Hunjiang District, Baishan, Jilin, China
57.5km (35.7 miles) ⓘShipenggou Au deposit, Tonghua, Jilin, China
57.9km (36.0 miles) ⓘJian forsterite jade deposit, Ji'an Co., Tonghua, Jilin, China
58.5km (36.4 miles) ⓘYantongqiaozi Au deposit, Meihekou Co., Tonghua, Jilin, China
61.3km (38.1 miles) ⓘDahenglu Mine, Hunjiang District, Baishan, Jilin, China
70.6km (43.9 miles) ⓘDongbaligou Au deposit, Jiangyuan District (Hunjiang Co.), Baishan, Jilin, China
83.2km (51.7 miles) ⓘMarch 5 Youth Cu-Mo Mine, Chunggang County, Chagang Province, North Korea
87.9km (54.6 miles) ⓘXianjinchang Au deposit, Qingyuan Co., Fushun, Liaoning, China
References
Keevil, Halley A.; Monecke, Thomas; Goldfarb, Richard J.; Feng, Tao (2022) Metallogeny of the Hunjiang basin, northeastern North China block. Ore Geology Reviews, 148. p.104995. doi:10.1016/j.oregeorev.2022.104995
Dong, Guozhen; Zhao, Junkang; Sun, Jinggui; Han, Jilong (2025) Fluid evolution of the Ermi porphyry Cu system, southern Jilin Province, northeastern China. Ore Geology Reviews, 183. 106664 doi:10.1016/j.oregeorev.2025.106664
 
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