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
Nemo's Quarry, Haddam, Middlesex County, Connecticut, USA


Locality type:Quarry
Classification
Species:Chalcopyrite
Formula:CuFeS2
Confirmation
Validity:Believed Valid
Data
Mineral Data:Click here to view Chalcopyrite data
Locality Data:Click here to view Nemo's Quarry, Haddam, Middlesex County, Connecticut, USA
Data Identifiers
Mindat Occurrence Record ID:920234
Long-form Identifier:1:3:920234:4
GUID (UUID V4):0
Nearest other occurrences of Chalcopyrite
0.2km (0.1 miles) ⓘLong Hill Quarry, Haddam, Middlesex County, Connecticut, USA
0.5km (0.3 miles) ⓘGulf Quarry, Haddam, Middlesex County, Connecticut, USA
0.7km (0.5 miles) ⓘHewitt Gem Quarry (Herb's Gem Quarry; Sawmill Quarry), Haddam, Middlesex County, Connecticut, USA
1.5km (0.9 miles) ⓘArnold Granite Quarry (General Brainerd Quarry; Great Hill Quarry; Hazelton Quarry; Haddam Quarry; Brookes Quarry), Haddam, Middlesex County, Connecticut, USA
1.8km (1.1 miles) ⓘSulfur Spring (Sulphur Spring), Haddam, Middlesex County, Connecticut, USA
1.8km (1.1 miles) ⓘState Route 9 rock cuts, Haddam, Middlesex County, Connecticut, USA
3.8km (2.4 miles) ⓘGillette Quarry (J-J Mine; Haddam Neck Quarry), Haddam Neck, Haddam, Middlesex County, Connecticut, USA
4.4km (2.7 miles) ⓘState Route 9 and State Route 81 Interchange, Higganum, Haddam, Middlesex County, Connecticut, USA
5.7km (3.5 miles) ⓘRock Landing Quarry (Capt. Rohrback Quarry), Haddam Neck, Haddam, Middlesex County, Connecticut, USA
8.1km (5.0 miles) ⓘWorth and Selden Quarries (Victoria Quarry), East Hampton, Middlesex County, Connecticut, USA
References
Williams, Horace S. (circa 1945): Article for New York Society of Mineralogists. Brainerd Public Library, Haddam, Connecticut.
 
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