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Graphite mine, Portage Co., Wisconsin, USAi
Regional Level Types
Graphite mineMine
Portage Co.County
WisconsinState
USACountry

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PhotosMapsSearch
Latitude & Longitude (WGS84):
44° 36' 28'' North , 89° 45' 58'' West
Latitude & Longitude (decimal):
Locality type:
Nearest Settlements:
PlacePopulationDistance
Junction City431 (2017)1.9km
Milladore275 (2017)7.0km
Sherry800 (2017)12.1km
Rudolph432 (2017)12.8km
Knowlton120 (2017)13.8km
Nearest Clubs:
Local clubs are the best way to get access to collecting localities
ClubLocationDistance
Heart of Wisconsin Gem & Mineral SocietyMarshfield & Stevens Point, Wisconsin35km


A deposit of carbonaceous schist was worked for a poor grade of graphite in the early 1900's. The product was apparently mixed with materials mined from a ferruginous schist a few miles away to make various paints. The location given is "one mile north of Junction City on County Road G", but traces of the long-abandoned workings have been obliterated.

Select Mineral List Type

Standard Detailed Gallery Strunz Chemical Elements

Commodity List

This is a list of exploitable or exploited mineral commodities recorded at this locality.


Mineral List


3 valid minerals.

Detailed Mineral List:

Chalcopyrite
Formula: CuFeS2
Reference: R&M 73:11-12 pp 378-399 Wisconsin Mineral Locality Index
Graphite
Formula: C
Reference: http://wgnhs.uwex.edu/minerals/graphite/
Pyrite
Formula: FeS2
Reference: http://wgnhs.uwex.edu/minerals/graphite/

Gallery:

List of minerals arranged by Strunz 10th Edition classification

Group 1 - Elements
Graphite1.CB.05aC
Group 2 - Sulphides and Sulfosalts
Chalcopyrite2.CB.10aCuFeS2
Pyrite2.EB.05aFeS2

List of minerals for each chemical element

CCarbon
C GraphiteC
SSulfur
S ChalcopyriteCuFeS2
S PyriteFeS2
FeIron
Fe ChalcopyriteCuFeS2
Fe PyriteFeS2
CuCopper
Cu ChalcopyriteCuFeS2

References

Sort by

Year (asc) Year (desc) Author (A-Z) Author (Z-A)
Cordua, W. (1998) Minerals of Wisconsin: Rocks and Minerals: 73 (6): 378 - 399
Crowns, Byron (1976) Wisconsin through 5 billion years of change: Wisconsin Earth Science Center, 318 p.

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