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
Shiganghe Sn-W deposit, Yunlong County, Dali, Yunnan, 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 Shiganghe Sn-W deposit, Yunlong County, Dali, Yunnan, China
Data Identifiers
Mindat Occurrence Record ID:1970727
Long-form Identifier:1:3:1970727:5
GUID (UUID V4):0
Nearest other occurrences of Biotite
24.9km (15.5 miles) ⓘTiechang Sn deposit (Yunlong Sn deposit), Lancang river valley (Lancangjiang valley; Mekong valley), Yunlong County, Dali, Yunnan, China
36.0km (22.4 miles) ⓘDatongchang Sn-Pb-Zn deposit (Dadongchang Sn-Pb-Zn deposit), Tengchong Sn belt, Tengchong County, Baoshan, Yunnan, China
42.5km (26.4 miles) ⓘJinchanghe Mine, Longyang District, Baoshan, Yunnan, China
43.4km (27.0 miles) ⓘZhuopan, Yunlong County, Dali, Yunnan, China
51.6km (32.0 miles) ⓘZhuopan alkaline complex, Yongping County, Dali, Yunnan, China
67.7km (42.1 miles) ⓘXiaolonghe Sn deposit, Tengchong Sn belt, Tengchong County, Baoshan, Yunnan, China
68.1km (42.3 miles) ⓘDasongpo Sn deposit, Tengchong Sn belt, Tengchong County, Baoshan, Yunnan, China
68.3km (42.4 miles) ⓘGudong Sn deposit, Tengchong Sn belt, Tengchong County, Baoshan, Yunnan, China
82.0km (50.9 miles) ⓘTieyaoshan W-Sn deposit, Tengchong Sn belt, Tengchong County, Baoshan, Yunnan, China
90.5km (56.2 miles) ⓘBaihuanao intrusion, Tengchong Sn belt, Tengchong County, Baoshan, Yunnan, China
References
Jiao, Qianqian; Wang, Zechuan; Li, Wenchang; Luo, Yitian; Tang, Faming; Cheng, Jialong; Miao, Fajin (2026) In Situ Trace Element and S-Pb Isotope Characteristics of Pyrite from the Shiganghe W-Sn and Tiechang Sn Deposits in Western Yunnan Province, China. Minerals, 16 (7). doi:10.3390/min16070690
 
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