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
Vulcan Materials Company Crushed Stone Quarry (Manassas Quarry), Manassas, Prince William County, Virginia, USA


05511720017374182241880.jpg
Chalcopyrite, etc.

Vulcan Materials Company Crushed Stone Quarry, Manassas, Prince William County, Virginia, USA
00040400017272038551637.jpg
Chalcopyrite

Vulcan Materials Company Crushed Stone Quarry, Manassas, Prince William County, Virginia, USA
05511720017374182241880.jpg
Chalcopyrite, etc.

Vulcan Materials Company Crushed Stone Quarry, Manassas, Prince William County, Virginia, USA
00040400017272038551637.jpg
Chalcopyrite

Vulcan Materials Company Crushed Stone Quarry, Manassas, Prince William County, Virginia, USA
03284240017374182255621.jpg
Chalcopyrite, etc.

Vulcan Materials Company Crushed Stone Quarry, Manassas, Prince William County, Virginia, USA
00040400017272038551637.jpg
Chalcopyrite

Vulcan Materials Company Crushed Stone Quarry, Manassas, Prince William County, Virginia, USA
Locality type:Quarry
Classification
Species:Chalcopyrite
Formula:CuFeS2
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Calcite3
Prehnite2
Data
Mineral Data:Click here to view Chalcopyrite data
Locality Data:Click here to view Vulcan Materials Company Crushed Stone Quarry (Manassas Quarry), Manassas, Prince William County, Virginia, USA
Photo GalleryView Gallery (2 photos)
Data Identifiers
Mindat Occurrence Record ID:93061
Long-form Identifier:1:3:93061:3
GUID (UUID V4):0
Nearest other occurrences of Chalcopyrite
6.7km (4.2 miles) ⓘGainesville Quarry, Gainesville, Prince William County, Virginia, USA
7.0km (4.4 miles) ⓘFairfax Quarry, Centreville, Culpeper Basin, Fairfax County, Virginia, USA
10.3km (6.4 miles) ⓘBull Run Quarry, Conklin, Loudoun County, Virginia, USA
15.9km (9.9 miles) ⓘMalachite Prospect (MRDS - 10203527), Chantilly, Fairfax County, Virginia, USA
16.5km (10.3 miles) ⓘMillbrook Quarry (Haymarket Quarry), Haymarket, Prince William County, Virginia, USA
21.9km (13.6 miles) ⓘTheodora Mine, Herndon, Fairfax County, Virginia, USA
26.4km (16.4 miles) ⓘCabin Branch Mine (Dumfries Mine), Dumfries, Gold-Pyrite Belt, Prince William County, Virginia, USA
27.0km (16.8 miles) ⓘElk Run Prospect, Potomac Basin, Fauquier County, Virginia, USA
28.9km (18.0 miles) ⓘUnnamed PGE Occurrence (MRDS - 10048644), Loudoun County, Virginia, USA
29.5km (18.3 miles) ⓘJenkins Farm Prospect, Fairfax County, Virginia, USA
References
Rocks & Min.: 60:168.
 
and/or  
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