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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Goethite from
Mayville Open Pit Mine, Iron Ridge Mines, Iron Ridge Mining District (Neda Iron Mining District), Dodge County, Wisconsin, USA


Locality type:Mine
Classification
Species:Goethite
Formula:Fe3+O(OH)
Habit:Almost always found in Oolitic form, sometimes massive.
Colour:Rusty black to bronze color.
Luminescent properties:None
Abundance at site:Rare
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Goethite data
Locality Data:Click here to view Mayville Open Pit Mine, Iron Ridge Mines, Iron Ridge Mining District (Neda Iron Mining District), Dodge County, Wisconsin, USA
Data Identifiers
Mindat Occurrence Record ID:389177
Long-form Identifier:1:3:389177:3
GUID (UUID V4):0
Nearest other occurrences of Goethite
0.6km (0.4 miles) ⓘIron Ridge Mines, Iron Ridge Mining District (Neda Iron Mining District), Dodge County, Wisconsin, USA
0.8km (0.5 miles) ⓘIron Ridge Mine (Neda Mine; Oliver Mine), Iron Ridge Mines, Iron Ridge Mining District (Neda Iron Mining District), Dodge County, Wisconsin, USA
28.8km (17.9 miles) ⓘHelen H. Westphal Quarry (C. C. Linck; Inc.; Ghost Hill Road Quarry), Dodge County, Wisconsin, USA
41.6km (25.9 miles) ⓘWaterloo quarry (Michels Materials Waterloo quarry; Portland Quarry), Dodge County, Wisconsin, USA
62.0km (38.5 miles) ⓘSt. Marie quarry, Green Lake County, Wisconsin, USA
72.7km (45.2 miles) ⓘAllan Quarry, Winnebago County, Wisconsin, USA
References
Hawley, J. & A. Bevan (1934) Mineralogy and genesis of the Mayville iron ore of Wisconsin: american Mineralogist: 19 (11): 493- 514.
 
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