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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Psilomelane from
Sunset Mine group (Sunset group; Sunset claims), Silver Bell Mining District, Silver Bell Mountains, Pima County, Arizona, USA


Classification
Species:'Psilomelane' (not an IMA approved species)
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Psilomelane data
Locality Data:Click here to view Sunset Mine group (Sunset group; Sunset claims), Silver Bell Mining District, Silver Bell Mountains, Pima County, Arizona, USA
Data Identifiers
Mindat Occurrence Record ID:180271
Long-form Identifier:1:3:180271:9
GUID (UUID V4):0
Nearest other occurrences of Psilomelane
24.7km (15.4 miles) ⓘPointing Cactus group (Grier-Nichols claims), Indian Head area, Sawtooth Mining District, Sawtooth Mountains, Ironwood Forest National Monument, Pinal County, Arizona, USA
27.1km (16.9 miles) ⓘTeller claim (Santa Rosa claim), Indian Head area, Sawtooth Mining District, Sawtooth Mountains, Pinal County, Arizona, USA
35.8km (22.3 miles) ⓘBlack Jewel claim, Chuichu area, Silver Reef Mountains, Tat Momoli Mountains, Silver Reef Mining District, Pinal County, Arizona, USA
45.4km (28.2 miles) ⓘStella Maris No. 1 Mine (Drew Springs Mine; Black Widow Mine), Sheridan Mountains, Cimarron Mining District (Salt Well Mining District), Cimarron & Sheridan Mountains, Pima County, Arizona, USA
45.4km (28.2 miles) ⓘBlack Diamond group, Cimarron Mountains, Cimarron Mining District (Salt Well Mining District), Cimarron & Sheridan Mountains, Pima County, Arizona, USA
45.9km (28.5 miles) ⓘBlack Jack Mine, Drew Spring Well, Sheridan Mountains, Cimarron Mining District (Salt Well Mining District), Cimarron & Sheridan Mountains, Pima County, Arizona, USA
46.3km (28.8 miles) ⓘManganese King group, Sheridan Mountains, Cimarron Mining District (Salt Well Mining District), Cimarron & Sheridan Mountains, Pima County, Arizona, USA
48.1km (29.9 miles) ⓘCoyote Mountains, Pima County, Arizona, USA
51.5km (32.0 miles) ⓘMildren Mine (Mildren claim; Mildred Mine), Mildren Mine group, Ko Vaya, Cababi Mining District (Comobabi Mining District), Comobabi Mountains, Pima County, Arizona, USA
64.3km (39.9 miles) ⓘBlack Dike Mine (Black Dike group; Black Dike claim; Black Dike deposit; Black Dyke Mine; Big Dike; Bobson group; Big Dike Apex & Ajax), Papago Mining District (Sierrita Mining District), Sierrita Mountains, Pima County, Arizona, USA
References
Farnham, L.L. (1961) Manganese Deposits of New Mexico. Information Circular 8030. U.S. Bureau of Mines 176pp.p.119
Keith, Stanton B. (1974), AZ Bur. of Geol. & Min. Technology, Geol. Survey Br. Bull. 189, Index of Mining Properties in Pima County, AZ: 144 (Table 4)
(n.d.) ADMMR Mines Database, Arizona Geological Survey.
 
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