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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Mckinstryite from
Payrock Mine, Illinois Mine, Georgetown District, Clear Creek County, Colorado, USA


05067700017368342558752.jpg
Mckinstryite

Payrock Mine, Illinois Mine, Georgetown District, Clear Creek County, Colorado, USA
08789040017368342554174.jpg
Mckinstryite, etc.

Payrock Mine, Illinois Mine, Georgetown District, Clear Creek County, Colorado, USA
08476550017272735514859.jpg
Mckinstryite

Payrock Mine, Illinois Mine, Georgetown District, Clear Creek County, Colorado, USA
07068210017272012206589.jpg
Mckinstryite, etc.

Payrock Mine, Illinois Mine, Georgetown District, Clear Creek County, Colorado, USA
01283080017272246768291.jpg
Mckinstryite

Payrock Mine, Illinois Mine, Georgetown District, Clear Creek County, Colorado, USA
07068210017272012206589.jpg
Mckinstryite, etc.

Payrock Mine, Illinois Mine, Georgetown District, Clear Creek County, Colorado, USA
Locality type:Mine
Classification
Species:Mckinstryite
Formula:Ag5-xCu3+xS4
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Jalpaite1
Data
Mineral Data:Click here to view Mckinstryite data
Locality Data:Click here to view Payrock Mine, Illinois Mine, Georgetown District, Clear Creek County, Colorado, USA
Photo GalleryView Gallery (2 photos)
Data Identifiers
Mindat Occurrence Record ID:665668
Long-form Identifier:1:3:665668:3
GUID (UUID V4):0
Nearest other occurrences of Mckinstryite
0.8km (0.5 miles) ⓘGabanta, Georgetown District, Clear Creek County, Colorado, USA
References
Grybeck, Donald, Finney, J. J. (1968) New occurrences and data for jalpaite. American Mineralogist, 53 (9-10) 1530-1542
Eckel, Edwin Butt; Cobban, Robert R.; Mosburg, Shirley K.; Foord, Eugene E. (1997) Minerals of Colorado. Fulcrum Publishing.
 
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