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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P. M. Mine, Mineral Point area, Iowa County, Wisconsin, USAi
Regional Level Types
P. M. MineMine
Mineral Point areaMining Area
Iowa CountyCounty
WisconsinState
USACountry
P. M. Mine, Mineral Point area, Upper Mississippi Valley Zinc-Lead District, USA

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Latitude & Longitude (WGS84):
42° 53' 3'' North , 90° 13' 16'' West
Latitude & Longitude (decimal):
42.88417,-90.22111
GeoHash:
G#: 9zxgfyyfr
GRN:
N29W48
Type:
Mine
Köppen climate type:
Dfb : Warm-summer humid continental climate
Nearest Settlements:
PlacePopulationDistance
Mineral Point2,494 (2017)4.3km
Linden538 (2017)5.7km
Edmund173 (2017)9.9km
Dodgeville4,652 (2017)11.2km
Cobb463 (2017)12.8km
Mindat Locality ID:
170447
Long-form identifier:
mindat:1:2:170447:4
GUID (UUID V4):
0


This small zinc-lead mine worked on the site of an older shaft between 1942 and 1943. Ore was mostly in pitch and flat structures in the Ordovician carbonate rocks of the Decorah and Galena Formations.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Mineral List


5 valid minerals.

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 2 - Sulphides and Sulfosalts
ⓘSphalerite2.CB.05aZnS
ⓘPyrite2.EB.05aFeS2
Group 4 - Oxides and Hydroxides
ⓘQuartz4.DA.05SiO2
Group 5 - Nitrates and Carbonates
ⓘCalcite5.AB.05CaCO3
ⓘDolomite5.AB.10CaMg(CO3)2

List of minerals for each chemical element

CCarbon
Cⓘ CalciteCaCO3
Cⓘ DolomiteCaMg(CO3)2
OOxygen
Oⓘ CalciteCaCO3
Oⓘ DolomiteCaMg(CO3)2
Oⓘ QuartzSiO2
MgMagnesium
Mgⓘ DolomiteCaMg(CO3)2
SiSilicon
Siⓘ QuartzSiO2
SSulfur
Sⓘ PyriteFeS2
Sⓘ SphaleriteZnS
CaCalcium
Caⓘ CalciteCaCO3
Caⓘ DolomiteCaMg(CO3)2
FeIron
Feⓘ PyriteFeS2
ZnZinc
Znⓘ SphaleriteZnS

Other Databases

Link to USGS MRDS:10086241

Other Regions, Features and Areas containing this locality

North AmericaContinent
North America PlateTectonic Plate
USA

This page contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.

References

Heyl, Allen V., Agnew, Allen F., Lyons, Erwin J., Behre, Charles H., Flint, Arthur E. (1959) The Geology of the Upper Mississippi Valley Zinc-Lead District. Professional Paper 309. US Geological Survey doi:10.3133/pp309 p.270
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