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
Clove Mine (Wilks Mine), Village of Monroe, Town of Monroe, Orange County, New York, USA


Locality type:Mine
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 Clove Mine (Wilks Mine), Village of Monroe, Town of Monroe, Orange County, New York, USA
Data Identifiers
Mindat Occurrence Record ID:80767
Long-form Identifier:1:3:80767:0
GUID (UUID V4):0
Nearest other occurrences of Biotite
2.3km (1.4 miles) ⓘVillage of Monroe, Town of Monroe, Orange County, New York, USA
3.6km (2.3 miles) ⓘMica Mine, Town of Monroe, Orange County, New York, USA
4.0km (2.5 miles) ⓘO'Neil Mine, Lake Mombasha, Town of Monroe, Orange County, New York, USA
6.1km (3.8 miles) ⓘGreenwood Furnace, Arden (Greenwood), Orange County, New York, USA
9.2km (5.7 miles) ⓘGreenwood mine (Patterson mine), Town of Tuxedo, Orange County, New York, USA
10.6km (6.6 miles) ⓘHogencamp Mine, Town of Tuxedo, Orange County, New York, USA
12.2km (7.6 miles) ⓘHasenclever Mine, Harriman State Park, Rockland County, New York, USA
13.2km (8.2 miles) ⓘLake Mine, Sterling Lake, Town of Warwick, Orange County, New York, USA
13.4km (8.3 miles) ⓘBarnes Mine, Harriman State Park, Rockland County, New York, USA
13.7km (8.5 miles) ⓘForest of Dean Mine, Fort Montgomery, Town of Highlands, Orange County, New York, USA
References
Manchester, James G. (1931) The Minerals of New York City and its Environs. Bulletin of the New York Mineralogical Club Vol. 3 (1). New York Mineralogical Clubp.69
 
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