| Classification |
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| Species: | Allanite-(Ce) |
| Formula: | (CaCe)(AlAlFe2+)O[Si2O7][SiO4](OH) |
| Comments: | Very sharp terminated crystals crystals, up to half an inch in diameter and five or six inches in length, accompany pink fluorite. Massive material also occurs, intergrown with quartz, bastnaesite, pyrite, chalcopyrite, and white to greenish plagioclase (commonly stained brown). The allanite is not very radioactive and was identified by an x-ray diffraction test by Mary E. Mrose of the U. S. Geological Survey. She indicated that it gave an exceptionally clear pattern. It was obviously non-metamict, in keeping with its unaltered appearance and virtual lack of radioactivity. Note: Schooner misidentified these as staurolite in Zodac (1940). |
| Habit: | elongated prisms |
| Colour: | black, very dark brown |
| Quality for species: | Good crystals or rich for species - important (!) |
| Abundance at site: | Common |
| Confirmation |
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| Validity: | Believed Valid |
| Associated Minerals Based on Photo Data: |
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| Albite | ⓘ8 photos of Allanite-(Ce) associated with Albite at this locality. |
| Quartz | ⓘ6 photos of Allanite-(Ce) associated with Quartz at this locality. |
| Chalcopyrite | ⓘ2 photos of Allanite-(Ce) associated with Chalcopyrite at this locality. |
| Muscovite | ⓘ2 photos of Allanite-(Ce) associated with Muscovite at this locality. |
| Bastnäsite-(Ce) | ⓘ1 photo of Allanite-(Ce) associated with Bastnäsite-(Ce) at this locality. |
| Microcline | ⓘ1 photo of Allanite-(Ce) associated with Microcline at this locality. |
| Data |
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| Mineral Data: | Click here to view Allanite-(Ce) data |
| Locality Data: | Click here to view Linkpot cut, Airline Railroad, East Hampton (Chatham), Middlesex County, Connecticut, USA |
| Photo Gallery | View Gallery (11 photos) |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 712656 |
| Long-form Identifier: | 1:3:712656:7 |
| GUID (UUID V4): | eddaff37-a4de-4998-9dd0-b1bdfca4a307 |
| Nearest other occurrences of Allanite-(Ce) |
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| 9.3km (5.7 miles) | ⓘStrickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA |
| 10.6km (6.6 miles) | ⓘWalden Gem Quarry, Portland, Middlesex County, Connecticut, USA |
| 10.6km (6.6 miles) | ⓘConnecticut Yankee atomic power plant, Haddam Neck, Haddam, Middlesex County, Connecticut, USA |
| 11.5km (7.1 miles) | ⓘAndrews Quarry (old Hale Quarry; Grandfather Andrews Quarry), Portland, Middlesex County, Connecticut, USA |
| 36.0km (22.4 miles) | ⓘFlatrock Quarry (Flat Rock Quarry; Crystal Mall), Waterford, New London County, Connecticut, USA |
| 59.8km (37.2 miles) | ⓘSmith Granite quarry, Westerly, Washington County, Rhode Island, USA |
| 59.9km (37.2 miles) | ⓘRedstone Granite Quarry (Cherenzia Quarry), Westerly, Washington County, Rhode Island, USA |
| 65.8km (40.9 miles) | ⓘSullivan Quarry (Armetta Quarry; Copar Quarry; Westerly Granite Co. Quarry), Bradford, Westerly, Washington County, Rhode Island, USA |
| 98.3km (61.1 miles) | ⓘTilly Foster Iron Mine, Town of Southeast, Putnam County, New York, USA |
| References |
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Linkpot cut, Airline Railroad, East Hampton, Middlesex County, Connecticut, USA