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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Jarosite from
Steppe Mine (Steppe claim; Little Mary Mine), Mildren Mine group, Ko Vaya, Cababi Mining District (Comobabi Mining District), Comobabi Mountains, Pima County, Arizona, USA


Locality type:Mine
Classification
Species:Jarosite
Formula:KFe33+(SO4)2(OH)6
Comments:Lovely zone-colored crystals in vugs in milky quartz.
Habit:Tablets to 5 mm diameter
Colour:Zone-colored
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Jarosite data
Locality Data:Click here to view Steppe Mine (Steppe claim; Little Mary Mine), Mildren Mine group, Ko Vaya, Cababi Mining District (Comobabi Mining District), Comobabi Mountains, Pima County, Arizona, USA
Data Identifiers
Mindat Occurrence Record ID:255010
Long-form Identifier:1:3:255010:7
GUID (UUID V4):0
Nearest other occurrences of Jarosite
2.9km (1.8 miles) ⓘMildren Mine (Mildren claim; Mildred Mine), Mildren Mine group, Ko Vaya, Cababi Mining District (Comobabi Mining District), Comobabi Mountains, Pima County, Arizona, USA
52.8km (32.8 miles) ⓘUnnamed Cu prospect Vhnw-007r, Vaca Hills, Silver Bell Mining District, Silver Bell Mountains, Pima County, Arizona, USA
55.4km (34.4 miles) ⓘSilver Hill Mine group, Silver Hill, Silver Hill Mining District, Waterman Mining District, Pima County, Arizona, USA
57.3km (35.6 miles) ⓘOxide Mine, Silver Bell Mine, Mineral Mountain, Silver Bell Mining District, Silver Bell Mountains, Pima County, Arizona, USA
57.6km (35.8 miles) ⓘSilver Bell Mine, Mineral Mountain, Silver Bell Mining District, Silver Bell Mountains, Pima County, Arizona, USA
65.4km (40.6 miles) ⓘRepublic Mine (Republic Copper prospect; Ocotillo Copper Co. group; Super Six Mine; Super Six group; Lucky Ace Mine), Kohatk, Vekol Mining District, Vekol Mountains, Pinal County, Arizona, USA
66.1km (41.1 miles) ⓘReward Mine (Bat tunnel; South Reward; Petrochis claim; Phenomenon), Kohatk, Vekol Mining District, Vekol Mountains, Pinal County, Arizona, USA
75.8km (47.1 miles) ⓘEsperanza Mine [new], Pima Mining District, Sierrita Mountains, Pima County, Arizona, USA
78.4km (48.7 miles) ⓘNorth San Xavier pit (San Xavier North pit; San Xavier Mine), Mission complex, Pima Mining District (Olive Mining District; Mineral Hill Mining District; Twin Buttes Mining District), Sierrita Mountains, Tohono O'odham Nation Reservation, Arizona, USA
80.1km (49.8 miles) ⓘMission pit, Mission complex, San Xavier, Pima Mining District, Sierrita Mountains, Pima County, Arizona, USA
References
Williams, S.A, (1963), Oxidation of sulfide ores in the Mildren and Steppe mining districts, Pima Co., AZ, Econ.Geol.: 58: 1119-1125.
Anthony, John W.; Williams, Sidney A.; Bideaux, Richard A.; Grant, Raymond W. (1995) Mineralogy of Arizona (3rd ed.). University of Arizona Press.p.262
 
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