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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Muscovite from
English Mine (English Knob Mine), Spruce Pine, Mitchell County, North Carolina, USA


Locality type:Mine
Classification
Species:Muscovite
Formula:KAl2(AlSi3O10)(OH)2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Muscovite data
Locality Data:Click here to view English Mine (English Knob Mine), Spruce Pine, Mitchell County, North Carolina, USA
Data Identifiers
Mindat Occurrence Record ID:613451
Long-form Identifier:1:3:613451:8
GUID (UUID V4):0
Nearest other occurrences of Muscovite
0.0km (0.0 miles) ⓘFrank Fortner Mine, Spruce Pine, Mitchell County, North Carolina, USA
0.0km (0.0 miles) ⓘWiseman Mine (Old Mart Wiseman Mine; Sullins-Wiseman Mine), Greasy Creek Township, Spruce Pine, Mitchell County, North Carolina, USA
0.0km (0.0 miles) ⓘAbernathy Mine, Spruce Pine, Mitchell County, North Carolina, USA
0.7km (0.4 miles) ⓘBlalock Mine, Mitchell County, North Carolina, USA
0.8km (0.5 miles) ⓘPeterson Mine, Mitchell County, North Carolina, USA
1.2km (0.7 miles) ⓘLissie Smith Mine, Mitchell County, North Carolina, USA
1.2km (0.8 miles) ⓘButler Mine, Mitchell County, North Carolina, USA
1.9km (1.2 miles) ⓘBill Willis Mine, Mitchell County, North Carolina, USA
2.1km (1.3 miles) ⓘWestall Mine, Mitchell County, North Carolina, USA
2.4km (1.5 miles) ⓘPink Mine, Mitchell County, North Carolina, USA
References
USGS Bull 315
 
and/or  
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