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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Pyrolusite from
Bunker Hill Mine, Tombstone Mining District, Cochise County, Arizona, USA


Locality type:Mine
Classification
Species:Pyrolusite
Formula:Mn4+O2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Pyrolusite data
Locality Data:Click here to view Bunker Hill Mine, Tombstone Mining District, Cochise County, Arizona, USA
Data Identifiers
Mindat Occurrence Record ID:211689
Long-form Identifier:1:3:211689:1
GUID (UUID V4):0
Nearest other occurrences of Pyrolusite
0.6km (0.4 miles) ⓘTelephone Mine, Tombstone Mining District, Cochise County, Arizona, USA
1.2km (0.7 miles) ⓘOregon-Prompter Mine group, Tombstone Mining District, Cochise County, Arizona, USA
1.6km (1.0 miles) ⓘLucky Cuss Mine, Tombstone Mining District, Cochise County, Arizona, USA
1.7km (1.1 miles) ⓘTombstone Extension Mines, Tombstone Mining District, Cochise County, Arizona, USA
3.2km (2.0 miles) ⓘGalvez Mine, Tombstone Mining District, Cochise County, Arizona, USA
6.5km (4.0 miles) ⓘFlorida Mine group, Tombstone Mining District, Cochise County, Arizona, USA
6.9km (4.3 miles) ⓘSuperior Mine, Tombstone Mining District, Cochise County, Arizona, USA
7.1km (4.4 miles) ⓘArlington Mine, Tombstone Mining District, Cochise County, Arizona, USA
9.5km (5.9 miles) ⓘGallagher Vanadium & Rare Minerals Corp Mine, Tombstone Mining District, Cochise County, Arizona, USA
21.9km (13.6 miles) ⓘCopper Rocks Mine, Turquoise Mining District (Courtland-Gleeson Mining District), Cochise County, Arizona, USA
References
Rasor, C.A. (1939), Manganese mineralization at Tombstone, AZ, Econ.Geol.: 34: 790-803
Romslo, T.M.; Ravitz, S.F. (1947, July) Arizona Manganese-Silver Ores. Report of Investigations 4097. U.S. Bureau of Mines
Havens, R., et al (1954), Beneficiation of oxide manganese and manganese-silver ores from southern Arizona, U.S. Bureau of Mines Report of Investigation 5024.
Hewett, Donnel Foster, Fleischer, Michael (1960) Deposits of the manganese oxides. Economic Geology, 55 (1) 1-55 doi:10.2113/gsecongeo.55.1.1
Anthony, John W.; Williams, Sidney A.; Bideaux, Richard A.; Grant, Raymond W. (1995) Mineralogy of Arizona (3rd ed.). University of Arizona Press.p.342
 
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