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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Nepheline from
Diamond Jo Quarry, Magnet Cove, Hot Spring County, Arkansas, USA


Locality type:Quarry
Classification
Species:Nepheline
Formula:Na3K(Al4Si4O16)
Comments:Occurs in miarolitic cavities and in masses in garnet-pseudoleucite syenite and nepheline syenite pegmatite.
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Nepheline data
Locality Data:Click here to view Diamond Jo Quarry, Magnet Cove, Hot Spring County, Arkansas, USA
Data Identifiers
Mindat Occurrence Record ID:62946
Long-form Identifier:1:3:62946:1
GUID (UUID V4):0
Nearest other occurrences of Nepheline
0.8km (0.5 miles) ⓘJones Mill Quarry, Magnet Cove, Hot Spring County, Arkansas, USA
1.6km (1.0 miles) ⓘMagnet Cove Baptist Church area, Magnet Cove, Hot Spring County, Arkansas, USA
2.4km (1.5 miles) ⓘEudialyte pegmatite, Magnet Cove, Hot Spring County, Arkansas, USA
3.0km (1.9 miles) ⓘKimzey Magnetite Mine, Magnet Cove, Hot Spring County, Arkansas, USA
3.8km (2.3 miles) ⓘMo-Ti Corporation prospect, Magnet Cove, Hot Spring County, Arkansas, USA
10.9km (6.7 miles) ⓘV intrusive, Lake Catherine, Garland County, Arkansas, USA
12.1km (7.5 miles) ⓘWilson Springs (Potash Sulfur Springs), Garland County, Arkansas, USA
39.3km (24.4 miles) ⓘGranite Mountain No. 3 Quarry, Sweet Home, Granite Mountain complex, Saline County, Arkansas, USA
59.7km (37.1 miles) ⓘBig Rock Quarry (3M Quarry; Arch Street Pike Quarry), Granite Mountain area, Little Rock, Pulaski County, Arkansas, USA
61.7km (38.4 miles) ⓘGranite Mountain Quarry No. 1, Granite Mountain Area, Little Rock, Pulaski County, Arkansas, USA
References
Rocks & Min.:64:300-307.
Flohr, Marta J. K., Ross, Malcolm (1989) Alkaline igneous rocks of Magnet Cove, Arkansas: Metasomatized ijolite xenoliths from Diamond Jo quarry. American Mineralogist, 74 (1-2) 113-131
 
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