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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Plagioclase from
Cripple Creek Mining District, Teller County, Colorado, USA


Locality type:Mining District
Classification
Species:'Plagioclase' (not an IMA approved species)
Formula:(Na,Ca)[(Si,Al)AlSi2]O8
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Plagioclase data
Locality Data:Click here to view Cripple Creek Mining District, Teller County, Colorado, USA
Data Identifiers
Mindat Occurrence Record ID:303403
Long-form Identifier:1:3:303403:3
GUID (UUID V4):0
Nearest other occurrences of Plagioclase
26.4km (16.4 miles) ⓘRosemont Mine (East Mine), Micanite Mining District (Currant Creek Mining District), Colorado, USA
26.9km (16.7 miles) ⓘStar Girl Mine (Colorado Feldspar Company Mine), Micanite Mining District (Currant Creek Mining District), Colorado, USA
27.2km (16.9 miles) ⓘUpper South Mine, Micanite Mining District (Currant Creek Mining District), Colorado, USA
27.4km (17.0 miles) ⓘTwin Mountain, Eight Mile Park Pegmatite Mining District, Fremont County, Colorado, USA
27.4km (17.0 miles) ⓘRowe's North Mine, Micanite Mining District (Currant Creek Mining District), Colorado, USA
27.4km (17.0 miles) ⓘRowe's No. 2 Mine, Micanite Mining District (Currant Creek Mining District), Colorado, USA
27.4km (17.0 miles) ⓘRowe's South Prospect, Micanite Mining District (Currant Creek Mining District), Colorado, USA
27.5km (17.1 miles) ⓘLower South Mine (Whisper ? Mine), Micanite Mining District (Currant Creek Mining District), Colorado, USA
27.5km (17.1 miles) ⓘWhopper Mine and Prospect, Micanite Mining District (Currant Creek Mining District), Colorado, USA
27.8km (17.3 miles) ⓘBeryllium Lode Prospect, Micanite Mining District (Currant Creek Mining District), Colorado, USA
References
Carnein, Carl R., Bartos, Paul J. (2005) Famous mineral localities: The Cripple Creek Mining District, Colorado, in March - April 2005. The Mineralogical Record, 36 (2) 143-185
 
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