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


Locality type:Quarry
Classification
Species:Allanite-(Ce)
Formula:(CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH)
Comments:"Found as long acicular crystals in the pegmatites at Glastonbury, Portland and near East Hampton." (Schairer 1931) and repeated by Zodac but original reference is not specific to this quarry.
Habit:long acicular
Confirmation
Validity:Unconfirmed/Questioned
Data
Mineral Data:Click here to view Allanite-(Ce) data
Locality Data:Click here to view Andrews Quarry (old Hale Quarry; Grandfather Andrews Quarry), Portland, Middlesex County, Connecticut, USA
Data Identifiers
Mindat Occurrence Record ID:147359
Long-form Identifier:1:3:147359:9
GUID (UUID V4):0
Nearest other occurrences of Allanite-(Ce)
1.4km (0.9 miles) ⓘWalden Gem Quarry, Portland, Middlesex County, Connecticut, USA
4.4km (2.7 miles) ⓘStrickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA
11.5km (7.1 miles) ⓘLinkpot cut, Airline Railroad, East Hampton, Middlesex County, Connecticut, USA
18.6km (11.5 miles) ⓘConnecticut Yankee atomic power plant, Haddam Neck, Haddam, Middlesex County, Connecticut, USA
44.3km (27.5 miles) ⓘCharter Oak Federal Credit Union construction site, Waterford, New London County, Connecticut, USA
47.5km (29.5 miles) ⓘFlatrock Quarry (Flat Rock Quarry; Crystal Mall), Waterford, New London County, Connecticut, USA
71.2km (44.2 miles) ⓘSmith Granite quarry, Westerly, Washington County, Rhode Island, USA
71.2km (44.2 miles) ⓘRedstone Granite Quarry (Cherenzia Quarry), Westerly, Washington County, Rhode Island, USA
77.0km (47.8 miles) ⓘSullivan Quarry (Armetta Quarry; Copar Quarry; Westerly Granite Co. Quarry), Bradford, Westerly, Washington County, Rhode Island, USA
90.1km (56.0 miles) ⓘTilly Foster Iron Mine, Town of Southeast, Putnam County, New York, USA
References
Rocks & Min.: 16: 164-167.
 
and/or  
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