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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Calcite from
Graves Mine, Hot Springs, Garland County, Arkansas, USA


Locality type:Mine
Classification
Species:Calcite
Formula:CaCO3
Comments:Occurts in quartz veins in Bigfork chert.
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Calcite data
Locality Data:Click here to view Graves Mine, Hot Springs, Garland County, Arkansas, USA
Data Identifiers
Mindat Occurrence Record ID:66903
Long-form Identifier:1:3:66903:4
GUID (UUID V4):0
Nearest other occurrences of Calcite
9.2km (5.7 miles) ⓘRon Coleman Mine, Blue Springs, Garland County, Arkansas, USA
9.5km (5.9 miles) ⓘShaw Mine, Blue Springs, Garland County, Arkansas, USA
10.1km (6.3 miles) ⓘDiamond Drill Carbon Co. No. 1 Mine, Blue Springs, Garland County, Arkansas, USA
10.2km (6.3 miles) ⓘFoyill Mine, Blue Springs, Garland County, Arkansas, USA
10.4km (6.5 miles) ⓘDierks No. 3 Mine, Blue Springs, Garland County, Arkansas, USA
14.2km (8.8 miles) ⓘWilson Springs (Potash Sulfur Springs), Garland County, Arkansas, USA
14.4km (8.9 miles) ⓘBeard Mine, Blue Springs, Garland County, Arkansas, USA
15.0km (9.3 miles) ⓘLittle Utley Mountain, Jessieville, Garland County, Arkansas, USA
15.4km (9.6 miles) ⓘMiller Mountain Mine, Blue Springs, Garland County, Arkansas, USA
15.6km (9.7 miles) ⓘNorth Wilson pit, Union Carbide Mine, Wilson Springs (Potash Sulfur Springs), Garland County, Arkansas, USA
References
Rocks & Min.:63:108
Engel(1952).
 
and/or  
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