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
Mountain Creek Monazite Placer, Rutherford County, North Carolina, USA


Locality type:Placer
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 Mountain Creek Monazite Placer, Rutherford County, North Carolina, USA
Data Identifiers
Mindat Occurrence Record ID:950401
Long-form Identifier:1:3:950401:1
GUID (UUID V4):0
Nearest other occurrences of Biotite
2.3km (1.4 miles) ⓘL. R. Elliot Mine, Cleveland County, North Carolina, USA
6.0km (3.7 miles) ⓘUnnamed Mica Gneiss Quarries HJ-028, Rutherford County, North Carolina, USA
8.1km (5.0 miles) ⓘLax Stroud Mine, Rutherford County, North Carolina, USA
8.7km (5.4 miles) ⓘHinton Creek Monazite Placer SW Tributary, Rutherford County, North Carolina, USA
11.3km (7.0 miles) ⓘSandy Run Monazite Placer North Tributary, Rutherford County, North Carolina, USA
14.1km (8.8 miles) ⓘWilliamson Mine, Cleveland County, North Carolina, USA
14.1km (8.8 miles) ⓘCooke Mine, Cleveland County, North Carolina, USA
15.9km (9.9 miles) ⓘA. F. Hoyle Mine, Cleveland County, North Carolina, USA
16.2km (10.1 miles) ⓘCampbell Mine, Cleveland County, North Carolina, USA
16.6km (10.3 miles) ⓘPilot Mountain Mine, Burke County, North Carolina, USA
References
(2005) Mineral Resources Data System (MRDS), US Geological Survey.
 
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