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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Chalcopyrite from
Boreas, Lawson Mining District, Clear Creek County, Colorado, USA


Locality type:Mine
Classification
Species:Chalcopyrite
Formula:CuFeS2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Chalcopyrite data
Locality Data:Click here to view Boreas, Lawson Mining District, Clear Creek County, Colorado, USA
Data Identifiers
Mindat Occurrence Record ID:608346
Long-form Identifier:1:3:608346:5
GUID (UUID V4):0
Nearest other occurrences of Chalcopyrite
0.1km (0.1 miles) ⓘBullion mine, Idaho Springs Mining District (Virginia Mining District), Clear Creek County, Colorado, USA
0.2km (0.1 miles) ⓘIdaho Tunnel, Central City Mining District, Clear Creek County, Colorado, USA
0.2km (0.1 miles) ⓘHayes Tunnel, Idaho Springs Mining District (Virginia Mining District), Clear Creek County, Colorado, USA
0.2km (0.2 miles) ⓘLittle Emma Tunnel, Idaho Springs Mining District (Virginia Mining District), Clear Creek County, Colorado, USA
0.3km (0.2 miles) ⓘFrontenac Shaft, Idaho Springs Mining District (Virginia Mining District), Clear Creek County, Colorado, USA
0.4km (0.2 miles) ⓘSeaton Mine, Idaho Springs Mining District (Virginia Mining District), Clear Creek County, Colorado, USA
0.4km (0.3 miles) ⓘLead Belt Tunnel, Idaho Springs Mining District (Virginia Mining District), Clear Creek County, Colorado, USA
0.5km (0.3 miles) ⓘTigris, Lawson Mining District, Clear Creek County, Colorado, USA
0.6km (0.4 miles) ⓘEsmeralda, Lawson Mining District, Clear Creek County, Colorado, USA
0.6km (0.4 miles) ⓘRed Jacket, Idaho Springs, Lawson Mining District, Clear Creek County, Colorado, USA
References
Moench, Robert Hadley, Drake, Avery Ala (1966) Mines and Prospects, Idaho Springs District, Clear Creek and Gilpin Counties, Colorado - Descriptions and Maps. Open-File Report Vol. 1966 (66-87) US Geological Survey doi:10.3133/ofr6687
 
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