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
Gap Mine, Bart Township, Lancaster County, Pennsylvania, 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 Gap Mine, Bart Township, Lancaster County, Pennsylvania, USA
Data Identifiers
Mindat Occurrence Record ID:65798
Long-form Identifier:1:3:65798:7
GUID (UUID V4):0
Nearest other occurrences of Chalcopyrite
18.4km (11.5 miles) ⓘBlue Ball Stone Co. Quarry, Blue Ball, East Earl Township, Lancaster County, Pennsylvania, USA
19.7km (12.3 miles) ⓘPequea Silver Mine, Pequea Township, Lancaster County, Pennsylvania, USA
20.1km (12.5 miles) ⓘWeaverland Quarry, Weaverland, East Earl Township, Lancaster County, Pennsylvania, USA
22.0km (13.7 miles) ⓘBurkholder Quarry, Martindale, Earl Township, Lancaster County, Pennsylvania, USA
22.9km (14.2 miles) ⓘH.R. Miller Quarry, Manor Township, Lancaster County, Pennsylvania, USA
29.1km (18.1 miles) ⓘBinkley-Ober Quarry, East Hempfield Township, Lancaster County, Pennsylvania, USA
29.3km (18.2 miles) ⓘGrace Mine, Morgantown, Berks County, Pennsylvania, USA
29.7km (18.5 miles) ⓘMartin Limestone Quarry, East Cocalico Township, Lancaster County, Pennsylvania, USA
31.1km (19.3 miles) ⓘJones mine, Caernarvon Township, Berks County, Pennsylvania, USA
31.4km (19.5 miles) ⓘKeystone Trap Rock Quarry, Cornog, Wallace Township, Chester County, Pennsylvania, USA
References
Dana 6:1069
Dana 7:I:235,241 & II:490.
(1990) Lawrence H. Conklin Mineral List, in Twentieth Anniversary Issue. The Mineralogical Record, 21 (1) 102-105
 
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