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
Jinchangqing ore block, Machangqing Mine, Machangqing Cu-Mo-Au ore field (Baoxingchang Cu-Mo-Au ore field), Midu County, Dali, Yunnan, China


Locality type:Ore 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 Jinchangqing ore block, Machangqing Mine, Machangqing Cu-Mo-Au ore field (Baoxingchang Cu-Mo-Au ore field), Midu County, Dali, Yunnan, China
Data Identifiers
Mindat Occurrence Record ID:741601
Long-form Identifier:1:3:741601:9
GUID (UUID V4):0
Nearest other occurrences of Biotite
6.3km (3.9 miles) ⓘLuandongshan ore block, Machangqing Mine, Machangqing Cu-Mo-Au ore field (Baoxingchang Cu-Mo-Au ore field), Midu County, Dali, Yunnan, China
8.0km (5.0 miles) ⓘMachangqing Mine, Machangqing Cu-Mo-Au ore field (Baoxingchang Cu-Mo-Au ore field), Midu County, Dali, Yunnan, China
8.3km (5.2 miles) ⓘBaoxingchang ore block, Machangqing Mine, Machangqing Cu-Mo-Au ore field (Baoxingchang Cu-Mo-Au ore field), Midu County, Dali, Yunnan, China
11.6km (7.2 miles) ⓘShuangmacao Au deposit, Machangqing Cu-Mo-Au ore field (Baoxingchang Cu-Mo-Au ore field), Midu County, Dali, Yunnan, China
66.6km (41.4 miles) ⓘJinbaoshan Pt-Pd-Ni-Cu deposit (Jingbaoshan Pt-Pd-Ni-Cu deposit), Midu County, Dali, Yunnan, China
72.7km (45.2 miles) ⓘBijiashan Mine, Beiya Au-Cu ore field, Heqing County, Dali, Yunnan, China
74.2km (46.1 miles) ⓘYao'an Au-Ag deposit, Yao'an County, Chuxiong, Yunnan, China
74.7km (46.4 miles) ⓘBeiya Au-Cu ore field, Heqing County, Dali, Yunnan, China
75.2km (46.7 miles) ⓘWandongshan Mine, Beiya Au-Cu ore field, Heqing County, Dali, Yunnan, China
93.7km (58.2 miles) ⓘAlin Au deposit, Shuixie Cu–Co ore field, Yongping County, Dali, Yunnan, China
References
Zihua Wang, Xiaodong Guo, Wanqiang Yu, Yiling Zhou, Tao Xu, and Yong Zhang (2010): Geology and Exploration 46(2), 214-223
 
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