Vote for your favorite mineral in #MinCup26! - Quartz vs. Asagiite
It's a classic vs a newbie as the most common named mineral in the crust Quartz is up against an exceedingly-rare sea foam-green mineral discovered just a few years ago Asagiite.
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Pyrolusite from
King of Arizona Mine, Kofa Mining District, Yuma 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 King of Arizona Mine, Kofa Mining District, Yuma County, Arizona, USA
Data Identifiers
Mindat Occurrence Record ID:239482
Long-form Identifier:1:3:239482:4
GUID (UUID V4):0
Nearest other occurrences of Pyrolusite
1.1km (0.7 miles) ⓘBlack Dahlia Mine, Kofa Mining District, Yuma County, Arizona, USA
19.8km (12.3 miles) ⓘBlack King Mine, Tank Mountains Mining District, Tank Mountains, Yuma County, Arizona, USA
22.7km (14.1 miles) ⓘSheep Tanks Mine (Sheep Tank Mine; Resolution group), Sheep Tanks Mining District, Little Horn Mountains, Yuma County, Arizona, USA
26.9km (16.7 miles) ⓘBlack Joe Mine (Gibson Mine), Castle Dome Mining District, Castle Dome Mountains, Yuma County, Arizona, USA
43.2km (26.9 miles) ⓘNational Debt Mine, Bear Hills, Plomosa Mining District, Plomosa Mountains, La Paz County, Arizona, USA
46.1km (28.7 miles) ⓘBlack Buck & Buckhorn Mine, Eagle Tail Mining District, Eagletail Mts (Cemetary Ridge), La Paz County, Arizona, USA
46.6km (29.0 miles) ⓘUnnamed Manganese prospects, Eagletail Mts (Cemetery Ridge) area, Yuma County, Arizona, USA
50.1km (31.1 miles) ⓘBlack Hawk Mine, Eagle Tail Mining District, Eagletail Mts (Cemetary Ridge), La Paz County, Arizona, USA
51.9km (32.2 miles) ⓘPerry Mine, Plomosa Mining District, Plomosa Mountains, La Paz County, Arizona, USA
58.1km (36.1 miles) ⓘBlack Diamond Mine group, Hidden Valley, U.S. Army Yuma Proving Grounds, Trigo Mountains Mining District (Cibola Mining District), La Paz County, Arizona, USA
References
Anthony, John W.; Williams, Sidney A.; Bideaux, Richard A.; Grant, Raymond W. (1995) Mineralogy of Arizona (3rd ed.). University of Arizona Press.pages 124, 165, 240, 343, 398
 
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