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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Quartz from
Piquette Mine (Piquette #2), Tennyson area, Grant County, Wisconsin, USA


Locality type:Mine
Classification
Species:Quartz
Formula:SiO2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Quartz data
Locality Data:Click here to view Piquette Mine (Piquette #2), Tennyson area, Grant County, Wisconsin, USA
Data Identifiers
Mindat Occurrence Record ID:922980
Long-form Identifier:1:3:922980:8
GUID (UUID V4):0
Nearest other occurrences of Quartz
0.2km (0.1 miles) ⓘTrego No. 2 Mine, Tennyson area, Grant County, Wisconsin, USA
0.3km (0.2 miles) ⓘWilson Mine (Bootjack Mine), Tennyson area, Grant County, Wisconsin, USA
1.1km (0.7 miles) ⓘKrog and Webster Mine, Tennyson area, Grant County, Wisconsin, USA
1.1km (0.7 miles) ⓘPreston Point Level Mine, Tennyson area, Grant County, Wisconsin, USA
1.4km (0.9 miles) ⓘTiffany Mine, Tennyson area, Grant County, Wisconsin, USA
1.6km (1.0 miles) ⓘCardiff No. 2 Mine, Potosi area, Grant County, Wisconsin, USA
2.1km (1.3 miles) ⓘHorseshoe Mine (Cardiff No. 1), Tennyson area, Grant County, Wisconsin, USA
2.7km (1.7 miles) ⓘSt. John Mine (Snake Cave), Potosi area, Grant County, Wisconsin, USA
6.1km (3.8 miles) ⓘRed Dog Mine, Tennyson area, Grant County, Wisconsin, USA
11.0km (6.8 miles) ⓘLittle Grant Mine (Brunton; Klondike), Blockhouse Range, Grant County, Wisconsin, USA
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 pp.241-242
 
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