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It's a showdown with rare earth elemental ore Monazite-(Ce) and index mineral Andalusite.
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Illite from
Shuangjianzishan Ag-polymetallic deposit, Bairin Left Banner (Balin Zuoqi), Chifeng City (Ulanhad League; Chifeng Prefecture), Inner Mongolia, China


Locality type:Deposit
Classification
Species:Muscovite var: Illite
Formula:K0.65Al2.0[Al0.65Si3.35O10](OH)2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Illite data
Locality Data:Click here to view Shuangjianzishan Ag-polymetallic deposit, Bairin Left Banner (Balin Zuoqi), Chifeng City (Ulanhad League; Chifeng Prefecture), Inner Mongolia, China
Data Identifiers
Mindat Occurrence Record ID:1639519
Long-form Identifier:1:3:1639519:4
GUID (UUID V4):0
Nearest other occurrences of Illite
88.6km (55.1 miles) ⓘAolunhua Mo-Cu deposit, Ar Horqin Banner (Aluke'erqin Co.), Chifeng City (Ulanhad League; Chifeng Prefecture), Inner Mongolia, China
References
Hui, Kaixuan, Rottier, Bertrand, Qin, Kezhang, Zajacz, Zoltan, Tsay, Alexandra, Zhao, Junxing, Gao, Shen, Shi, Ruizhe (2024) Silver Behavior During Magmatic and Magmatic-Hydrothermal Evolution of a Highly Evolved Reduced Granitic System Related to the Giant Shuangjianzishan Ag-Pb-Zn-(Sn) Epithermal Deposit, Northeast China. Economic Geology, 119 (1) 59-83 doi:10.5382/econgeo.5031
Wang, Le, Chiaradia, Massimo, Qin, Ke-Zhang, Hui, Kai-Xuan, Li, Zhen-Zhen, Cao, Ming-Jian, Song, Guo-Xue, Pang, Xu-Yong, Shan, Peng-Fei, Li, Guang-Ming (2024) Magmatic Controls on Au- and Ag-Rich Intermediate-Sulfidation Epithermal Deposits from Northeast China. Economic Geology, 119 (8). doi:10.5382/econgeo.5118
 
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