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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Aegirine from
Big Rock Quarry (3M Quarry; Arch Street Pike Quarry), Granite Mountain area, Little Rock, Pulaski County, Arkansas, USA


02084990017272033635472.jpg
Aegirine

Big Rock Quarry, Granite Mountain area, Little Rock, Pulaski County, Arkansas, USA
07537060017500069911007.jpg
Aegirine, etc.

Big Rock Quarry, Granite Mountain area, Little Rock, Pulaski County, Arkansas, USA
00739900017272025829614.jpg
Aegirine

Big Rock Quarry, Granite Mountain area, Little Rock, Pulaski County, Arkansas, USA
00665850017272025837230.jpg
Aegirine

Big Rock Quarry, Granite Mountain area, Little Rock, Pulaski County, Arkansas, USA
06087230017374283318432.jpg
Aegirine

Big Rock Quarry, Granite Mountain area, Little Rock, Pulaski County, Arkansas, USA
06865710017500068813419.jpg
Aegirine, etc.

Big Rock Quarry, Granite Mountain area, Little Rock, Pulaski County, Arkansas, USA
08420400017529228745831.jpg
Aegirine

Big Rock Quarry, Granite Mountain area, Little Rock, Pulaski County, Arkansas, USA
00236880017529228759854.jpg
Aegirine

Big Rock Quarry, Granite Mountain area, Little Rock, Pulaski County, Arkansas, USA
02084990017272033635472.jpg
Aegirine

Big Rock Quarry, Granite Mountain area, Little Rock, Pulaski County, Arkansas, USA
02868820017506947373911.jpg
Aegirine, etc.

Big Rock Quarry, Granite Mountain area, Little Rock, Pulaski County, Arkansas, USA
00739900017272025829614.jpg
Aegirine

Big Rock Quarry, Granite Mountain area, Little Rock, Pulaski County, Arkansas, USA
00665850017272025837230.jpg
Aegirine

Big Rock Quarry, Granite Mountain area, Little Rock, Pulaski County, Arkansas, USA
Locality type:Quarry
Classification
Species:Aegirine
Formula:NaFe3+Si2O6
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Eggletonite13
Barwoodite6
Analcime4
Zircon3
Kupletskite2
Orthoclase2
Pyrophanite2
Mosandrite-(Ce)2
Albite2
Stilbite Subgroup1
Quartz1
Heulandite Subgroup1
Catapleiite1
Sphalerite1
Astrophyllite1
Pectolite1
Natrolite1
Bastnäsite1
Data
Mineral Data:Click here to view Aegirine data
Locality Data:Click here to view Big Rock Quarry (3M Quarry; Arch Street Pike Quarry), Granite Mountain area, Little Rock, Pulaski County, Arkansas, USA
Photo GalleryView Gallery (5 photos)
Data Identifiers
Mindat Occurrence Record ID:45186
Long-form Identifier:1:3:45186:0
GUID (UUID V4):0
Nearest other occurrences of Aegirine
2.5km (1.5 miles) ⓘGranite Mountain Quarry No. 2, Granite Mountain Area, Little Rock, Pulaski County, Arkansas, USA
2.8km (1.7 miles) ⓘGranite Mountain Quarry No. 1, Granite Mountain Area, Little Rock, Pulaski County, Arkansas, USA
6.8km (4.2 miles) ⓘHoliday Inn Quarry, Granite Mountain area, Little Rock, Pulaski County, Arkansas, USA
20.7km (12.9 miles) ⓘGranite Mountain No. 3 Quarry, Sweet Home, Granite Mountain complex, Saline County, Arkansas, USA
40.2km (25.0 miles) ⓘUnnamed Ruthenium locality, Saline County, Arkansas, USA
56.7km (35.2 miles) ⓘKimzey Calcite Quarry (Calcite Hill), Magnet Cove, Hot Spring County, Arkansas, USA
58.5km (36.4 miles) ⓘMagnet Cove Rutile Company deposits, Magnet Cove, Hot Spring County, Arkansas, USA
59.1km (36.7 miles) ⓘJones Mill Quarry, Magnet Cove, Hot Spring County, Arkansas, USA
59.6km (37.0 miles) ⓘPerryville carbonatite dike, Perry County, Arkansas, USA
59.7km (37.1 miles) ⓘDiamond Jo Quarry, Magnet Cove, Hot Spring County, Arkansas, USA
References
Peacor, Donald R., Dunn, Pete J., Simmons, William B. (1984) Eggletonite, the Na analogue of ganophyllite. Mineralogical Magazine, 48 (346) 93-96 doi:10.1180/minmag.1984.048.346.12
Mineral News (2000) 16 (6), 1-5,9
 
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