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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Adularia from
Superior Mine (Old Superior Mine), Superior, Portage Township, Houghton County, Michigan, USA


Locality type:Mine
Classification
Species:K Feldspar var: Adularia
Formula:KAlSi3O8
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Adularia data
Locality Data:Click here to view Superior Mine (Old Superior Mine), Superior, Portage Township, Houghton County, Michigan, USA
Data Identifiers
Mindat Occurrence Record ID:418169
Long-form Identifier:1:3:418169:9
GUID (UUID V4):0
Nearest other occurrences of Adularia
2.8km (1.7 miles) ⓘIsle Royal Mines, Portage Township, Houghton County, Michigan, USA
18.9km (11.8 miles) ⓘLaurium Mine, Osceola Township, Houghton County, Michigan, USA
19.2km (11.9 miles) ⓘNo. 4 shaft, Osceola Mine, Osceola, Calumet Township, Houghton County, Michigan, USA
20.3km (12.6 miles) ⓘNo. 21 shaft, Calumet & Hecla Mine, Calumet, Calumet Township, Houghton County, Michigan, USA
21.5km (13.3 miles) ⓘTamarack, Osceola Township, Houghton County, Michigan, USA
23.3km (14.5 miles) ⓘTamarack Junior Mine (Tamarack Jr. Mine), Centennial Heights, Calumet Township, Houghton County, Michigan, USA
24.0km (14.9 miles) ⓘNo. 2 shaft, Centennial Mine, Centennial Heights, Calumet Township, Houghton County, Michigan, USA
25.8km (16.0 miles) ⓘWolverine No. 2 shaft, Wolverine Mine, Wolverine, Calumet Township, Houghton County, Michigan, USA
27.5km (17.1 miles) ⓘAllouez Mine, Allouez, Allouez Township, Keweenaw County, Michigan, USA
39.4km (24.5 miles) ⓘCliff Mine, Allouez Township, Keweenaw County, Michigan, USA
References
USGS PP144
 
and/or  
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