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⇱ Monazite-(Ce) from Andrews Quarry (old Hale Quarry; Grandfather Andrews Quarry), Portland, Middlesex County, Connecticut, USA

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Monazite-(Ce) from
Andrews Quarry (old Hale Quarry; Grandfather Andrews Quarry), Portland, Middlesex County, Connecticut, USA

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Locality type:Quarry
Classification
Species:Monazite-(Ce)
Formula:Ce(PO4)
Comments:Large, well formed monazite crystals (2 to 3 cm. in diameter) (Foye 1922)
up to 2 inches with brown staining (Schooner 1958)
Habit:roughly rectangular and flattened
Colour:red-brown
Quality for species:Good crystals or rich for species - important (!)
Confirmation
Validity:Believed Valid
Associated Minerals Based on Photo Data:
Albite7
Muscovite3
Quartz2
Columbite-(Fe)1
Microcline1
Data
Mineral Data:Click here to view Monazite-(Ce) data
Locality Data:Click here to view Andrews Quarry (old Hale Quarry; Grandfather Andrews Quarry), Portland, Middlesex County, Connecticut, USA
Photo GalleryView Gallery (8 photos)
Data Identifiers
Mindat Occurrence Record ID:147365
Long-form Identifier:1:3:147365:0
GUID (UUID V4):0
Nearest other occurrences of Monazite-(Ce)
0.3km (0.2 miles) ⓘHale Quarry (Andrews Quarry; Glastonbury Quarry), Portland, Middlesex County, Connecticut, USA
1.6km (1.0 miles) ⓘEureka Quarries, South Glastonbury, Glastonbury, Hartford County, Connecticut, USA
1.6km (1.0 miles) ⓘHollister prospects, South Glastonbury, Glastonbury, Hartford County, Connecticut, USA
1.8km (1.1 miles) ⓘCase Quarries, Portland, Middlesex County, Connecticut, USA
1.8km (1.1 miles) ⓘCase Quarry No. 2, Case Quarries, Portland, Middlesex County, Connecticut, USA
4.4km (2.7 miles) ⓘStrickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
6.5km (4.0 miles) ⓘNathan Hall Quarry, East Hampton, Middlesex County, Connecticut, USA
6.9km (4.3 miles) ⓘSpinelli prospect (Spinelli quarry), Glastonbury, Hartford County, Connecticut, USA
13.1km (8.2 miles) ⓘHurd State Park quarries, East Hampton, Middlesex County, Connecticut, USA
14.3km (8.9 miles) ⓘAnderson No. 1 Mica Mine, East Hampton, Middlesex County, Connecticut, USA
References
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To cite: Ralph, J., Von Bargen, D., Martynov, P., Zhang, J., Que, X., Prabhu, A., Morrison, S. M., Li, W., Chen, W., & Ma, X. (2025). Mindat.org: The open access mineralogy database to accelerate data-intensive geoscience research. American Mineralogist, 110(6), 833–844. doi:10.2138/am-2024-9486.
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