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
Ma'anqiao Au deposit, Zhouzhi County, Xi'an, Shaanxi, 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 Ma'anqiao Au deposit, Zhouzhi County, Xi'an, Shaanxi, China
Data Identifiers
Mindat Occurrence Record ID:478421
Long-form Identifier:1:3:478421:0
GUID (UUID V4):0
Nearest other occurrences of Biotite
53.5km (33.3 miles) ⓘYindongzi Pb-Ag deposit, Ningshan County, Ankang, Shaanxi, China
74.7km (46.4 miles) ⓘDazengxigou, Ningshan pegmatite district, Ningshan County, Ankang, Shaanxi, China
75.8km (47.1 miles) ⓘLizhaping, Ningshan pegmatite district, Ningshan County, Ankang, Shaanxi, China
76.6km (47.6 miles) ⓘGuilingou Mo-W deposit, Zhen'an County, Shangluo, Shaanxi, China
78.7km (48.9 miles) ⓘShuangwang Au deposit, Taibai County, Baoji, Shaanxi, China
79.0km (49.1 miles) ⓘXinjian, Ningshan pegmatite district, Ningshan County, Ankang, Shaanxi, China
83.2km (51.7 miles) ⓘSijiagoumen, Panjiawan Village, Panxi Town, Chencang District, Baoji, Shaanxi, China
References
Fudong Li, Xianghua Zou, Jipu Gao, Yao Lu, and Yuehong Zhang (2001): Northwestern Geology 34(1), 27-61
Xueming Wang, Jianzhong Feng, and Yuanrong Chen (2002): Mineral Deposits 21(suppl.), 697-699
 
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