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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Pyrochlore Group from
Wilson Springs (Potash Sulfur Springs), Garland County, Arkansas, USA


01678130017368490969727.jpg
Pyrochlore Group, etc.

Union Carbide Mine, Wilson Springs, Garland County, Arkansas, USA
01678130017368490969727.jpg
Pyrochlore Group, etc.

Union Carbide Mine, Wilson Springs, Garland County, Arkansas, USA
01227200017368490971047.jpg
Pyrochlore Group, etc.

Union Carbide Mine, Wilson Springs, Garland County, Arkansas, USA
Locality type:Spring
Classification
Species:'Pyrochlore Group' (not an IMA approved species)
Formula:A2Nb2(O,OH)6Z
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Malhmoodite2
Calcite1
Diopside-Hedenbergite Series1
Data
Mineral Data:Click here to view Pyrochlore Group data
Locality Data:Click here to view Wilson Springs (Potash Sulfur Springs), Garland County, Arkansas, USA
Data Identifiers
Mindat Occurrence Record ID:652437
Long-form Identifier:1:3:652437:1
GUID (UUID V4):0
Localities for Pyrochlore Group in this Region
Union Carbide Mine, Wilson Springs (Potash Sulfur Springs), Garland County, Arkansas, USA
North Wilson pit, Union Carbide Mine, Wilson Springs (Potash Sulfur Springs), Garland County, Arkansas, USA
Nearest other occurrences of Pyrochlore Group
1.6km (1.0 miles) ⓘNorth Wilson pit, Union Carbide Mine, Wilson Springs (Potash Sulfur Springs), Garland County, Arkansas, USA
1.6km (1.0 miles) ⓘUnion Carbide Mine, Wilson Springs (Potash Sulfur Springs), Garland County, Arkansas, USA
13.0km (8.1 miles) ⓘJones Mill Quarry, Magnet Cove, Hot Spring County, Arkansas, USA
74.5km (46.3 miles) ⓘHoliday Inn Quarry, Granite Mountain area, Little Rock, Pulaski County, Arkansas, USA
References
Heathcote, Richard C., Mccormick, George R. (1989) Major-cation substitution in phlogopite and evolution of carbonatite in the Potash Sulphur Springs complex, Garland County, Arkansas. American Mineralogist, 74 (1-2) 132-140
 
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