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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Zircon from
Hale Quarry (Andrews Quarry; Glastonbury Quarry), Portland, Middlesex County, Connecticut, USA


Locality type:Quarry
Classification
Species:Zircon
Formula:Zr(SiO4)
Comments:Zodac (1941) was referring to what he called the Grandfather Andrews Quarry and is now called the Andrews Quarry, so this report is erroneous.
Confirmation
Validity:Erroneously Reported
Data
Mineral Data:Click here to view Zircon data
Locality Data:Click here to view Hale Quarry (Andrews Quarry; Glastonbury Quarry), Portland, Middlesex County, Connecticut, USA
Data Identifiers
Mindat Occurrence Record ID:147373
Long-form Identifier:1:3:147373:5
GUID (UUID V4):0
Nearest other occurrences of Zircon
0.3km (0.2 miles) ⓘAndrews Quarry (old Hale Quarry; Grandfather Andrews Quarry), Portland, Middlesex County, Connecticut, USA
1.2km (0.7 miles) ⓘWalden Gem Quarry, Portland, Middlesex County, Connecticut, USA
1.3km (0.8 miles) ⓘSimpson Quarry (Wiarda Quarry), South Glastonbury, Glastonbury, Hartford County, Connecticut, USA
1.5km (0.9 miles) ⓘCase Quarry No. 1, Case Quarries, Portland, Middlesex County, Connecticut, USA
1.5km (0.9 miles) ⓘCase Quarries, Portland, Middlesex County, Connecticut, USA
1.5km (0.9 miles) ⓘCase Quarry No. 3, Case Quarries, Portland, Middlesex County, Connecticut, USA
1.7km (1.1 miles) ⓘGas pipeline excavation, South Glastonbury, Glastonbury, Hartford County, Connecticut, USA
3.6km (2.2 miles) ⓘPelton's Quarry, Portland, Middlesex County, Connecticut, USA
4.1km (2.6 miles) ⓘStrickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
6.2km (3.8 miles) ⓘNathan Hall Quarry, East Hampton, Middlesex County, Connecticut, USA
References
Zodac, Peter (1941): The Andrews Quarry Near Portland, Conn. Rocks and Minerals: 16(5): 164-167.pp.164-165
 
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