Vote for your favorite mineral in #MinCup26! - Sphalerite vs. Anorthite
Both zinc ore Sphalerite and calcium plagioclase feldspar Anorthite have perfect cleavage that will split cleanly if you hit them with a hammer, but only one can claim a larger split of your votes!
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Biotite from
Jiguanshi Ag-(Au) deposit, Yi'an District, Tongling, Anhui, 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 Jiguanshi Ag-(Au) deposit, Yi'an District, Tongling, Anhui, China
Data Identifiers
Mindat Occurrence Record ID:440496
Long-form Identifier:1:3:440496:5
GUID (UUID V4):0
Nearest other occurrences of Biotite
3.6km (2.3 miles) ⓘHehuashan Pb–Zn deposit, Xinqiao ore field, Tongling, Anhui, China
4.9km (3.1 miles) ⓘHamaling Au-Cu-Mo deposit, Yi'an District, Tongling, Anhui, China
5.0km (3.1 miles) ⓘSouth Hucun Cu-(Au) deposit, Shizishan ore field, Tongling, Anhui, China
5.0km (3.1 miles) ⓘHucun Cu-(Au) deposit, Shizishan ore field, Tongling, Anhui, China
6.5km (4.1 miles) ⓘDatuanshan Cu deposit, Shizishan ore field, Tongling, Anhui, China
6.6km (4.1 miles) ⓘChaoshan Au deposit, Shizishan ore field, Tongling, Anhui, China
7.9km (4.9 miles) ⓘTianmashan Mine, Tongguanshan ore field, Tongling, Anhui, China
8.1km (5.0 miles) ⓘJinkouling Mine (Jingkouling Mine), Tongguanshan ore field, Tongling, Anhui, China
8.8km (5.5 miles) ⓘTongguanshan Mine, Tongguanshan ore field, Tongling, Anhui, China
9.7km (6.0 miles) ⓘDongguashan Mine, Shizishan ore field, Tongling, Anhui, China
References
Qin Xinlong, Du Yangsong, Lee, H.K., Yin Jingwu, and Guo Xifeng (2003): Chinese Science Bulletin 48(23), 2626-2634.
 
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