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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Andradite from
Twin Buttes Mine, Twin Buttes, Pima Mining District, Sierrita Mountains, Pima County, Arizona, USA


Locality type:Mine
Classification
Species:Andradite
Formula:Ca3Fe23+(SiO4)3
Comments:Zones to 200 feet wide in limestone.
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Andradite data
Locality Data:Click here to view Twin Buttes Mine, Twin Buttes, Pima Mining District, Sierrita Mountains, Pima County, Arizona, USA
Data Identifiers
Mindat Occurrence Record ID:258201
Long-form Identifier:1:3:258201:6
GUID (UUID V4):0
Nearest other occurrences of Andradite
11.1km (6.9 miles) ⓘMission pit, Mission complex, San Xavier, Pima Mining District, Sierrita Mountains, Pima County, Arizona, USA
30.2km (18.8 miles) ⓘRosemont (Rosemont Camp), Helvetia-Rosemont Mining District, Pima County, Arizona, USA
38.0km (23.6 miles) ⓘEmpire Mountains, Pima County, Arizona, USA
43.0km (26.7 miles) ⓘUnnamed Cu prospect 117-16, Amole Mining District, Tucson Mountains, Pima County, Arizona, USA
65.2km (40.5 miles) ⓘKansas Mine, Washington Gulch, Nash Mines group (Duquesne-Washington group), Duquesne-Washington Camp, Patagonia Mining District, Patagonia Mountains, Santa Cruz County, Arizona, USA
65.5km (40.7 miles) ⓘManzanita Mine, Washington Gulch, Duquesne-Washington Camp, Patagonia Mining District, Patagonia Mountains, Santa Cruz County, Arizona, USA
65.6km (40.8 miles) ⓘNew York Mine (New York claim; Poole group; Ohio claim; Ohio Mine), Washington Gulch, Poole group of claims (Washington Poole Mines), Duquesne-Washington Camp, Patagonia Mining District, Patagonia Mountains, Santa Cruz County, Arizona, USA
66.0km (41.0 miles) ⓘAnnie Mine, Duquesne-Washington Camp, Patagonia Mining District, Patagonia Mountains, Santa Cruz County, Arizona, USA
66.0km (41.0 miles) ⓘCalifornia-Grasshopper Mine group (California claim; Grasshopper claim), Poole group of claims (Washington Poole Mines), Duquesne-Washington Camp, Patagonia Mining District, Patagonia Mountains, Santa Cruz County, Arizona, USA
66.8km (41.5 miles) ⓘHolland Mine, Duquesne Gulch, Nash Mines group (Duquesne-Washington group), Duquesne-Washington Camp, Patagonia Mining District, Patagonia Mountains, Santa Cruz County, Arizona, USA
References
Galbraith, F.W. & D.J. Brennan (1959), Minerals of AZ: 94.
Anthony, John W.; Williams, Sidney A.; Bideaux, Richard A.; Grant, Raymond W. (1995) Mineralogy of Arizona (3rd ed.). University of Arizona Press.p.111
 
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