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Monazite-(Ce) from
Spinelli prospect (Spinelli quarry), Glastonbury, Hartford Co., Connecticut, USA

Locality type:Prospect
Classification
Species:Monazite-(Ce)
Formula:Ce(PO4)
Comments:Recent collecting aided by ionizing radiation detectors (May 2012) has turned up an approximately 15-cm-long, subhedral crystal weighing around 4 kg and a few other smaller crystals to 8 cm. These are the first crystals found in the pegmatite since 1933 and may be the largest from Connecticut.
Habit:subhedral, blocky
Colour:brown-red
Quality for species:Good crystals or rich for species - important (!)
Abundance at site:Very Rare
Confirmation
Validity:Believed Valid
References
References:Albini, A.J. and Moritz, H. (2013), Collecting samarskite at the historic Spinelli prospect, Glastonbury, Hartford County, Connecticut. The 40th Rochester Mineralogical Symposium, Contributed Papers in Specimen Mineralogy, 8; Anthony Albini collection.
Data
Mineral Data:Click here to view Monazite-(Ce) data
Locality Data:Click here to view Spinelli prospect (Spinelli quarry), Glastonbury, Hartford Co., Connecticut, USA
Photo GalleryView Gallery (4 photos)
Nearest other occurrences of Monazite-(Ce)
6.0km (3.7 miles) Howe #4 Quarry and Eureka Quarries, South Glastonbury, Glastonbury, Hartford Co., Connecticut, USA
6.9km (4.3 miles) Case Quarries, Portland, Middlesex Co., Connecticut, USA
7.1km (4.4 miles) Andrews Quarry (old Hale Quarry; Grandfather Andrews Quarry), Portland, Middlesex Co., Connecticut, USA
7.2km (4.5 miles) Hale Quarry (Andrews Quarry; Glastonbury Quarry), Portland, Middlesex Co., Connecticut, USA
10.0km (6.2 miles) Nathan Hall Quarry (Clark Hill Quarry), East Hampton (Chatham), Middlesex Co., Connecticut, USA
10.7km (6.7 miles) Strickland Quarry (Eureka Quarry), Strickland pegmatite (Strickland-Cramer Quarry; Strickland-Cramer Mine; Strickland-Cramer Feldspar-Mica Quarries), Collins Hill, Portland, Middlesex Co., Connecticut, USA
17.9km (11.1 miles) Hurd State Park quarries, East Hampton (Chatham), Middlesex Co., Connecticut, USA
18.7km (11.6 miles) Anderson No. 1 Mica Mine (Swanson Mine; Swanson Lithia Mine; Old Lithia Mine; Chatham Lithia Mine), East Hampton (Chatham), Middlesex Co., Connecticut, USA
22.2km (13.8 miles) John Salak Quarry, Haddam, Middlesex Co., Connecticut, USA
25.3km (15.7 miles) State Route 9 Interchange 8 - Beaver Meadow Road, Haddam, Middlesex Co., Connecticut, USA
 
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