| Locality type: | Mine |
| Classification |
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| Species: | 'Columbite-(Fe)-Columbite-(Mn) Series' (not an IMA approved species) |
| Formation: | Primary |
| Comments: | Subhedral to skeletal crystals to a few cm usually in cleavelandite and quartz or as parallel aggregates accompany triplite and manganapatite. A crystal analyzed by Harold Moritz via SEM-EDS (see photo gallery) sits right on the 50-50 point between columbite-(Fe) and columbite-(Mn). Schooner (1961) "collected several beautifully developed crystals of deep red manganocolumbite at this locality; they were up to half an inch across, and were found with cleavelandite and gray lepidolite." In Schooner (circa 1990) he reports that they "have been shown [via SEM-EDS] to be manganocolumbite with little if any tantalum. A fine specimen is at the National Museum." |
| Habit: | tabular, skeletal |
| Colour: | black to deep red-black, with iridescence |
| Confirmation |
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| Validity: | Believed Valid |
| Associated Minerals Based on Photo Data: |
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| Cleavelandite | β4 photos of Columbite-(Fe)-Columbite-(Mn) Series associated with Cleavelandite at this locality. |
| Elbaite | β2 photos of Columbite-(Fe)-Columbite-(Mn) Series associated with Elbaite at this locality. |
| Bertrandite | β1 photo of Columbite-(Fe)-Columbite-(Mn) Series associated with Bertrandite at this locality. |
| Muscovite | β1 photo of Columbite-(Fe)-Columbite-(Mn) Series associated with Muscovite at this locality. |
| Lepidolite | β1 photo of Columbite-(Fe)-Columbite-(Mn) Series associated with Lepidolite at this locality. |
| Fluorapatite | β1 photo of Columbite-(Fe)-Columbite-(Mn) Series associated with Fluorapatite at this locality. |
| Data |
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| Mineral Data: | Click here to view Columbite-(Fe)-Columbite-(Mn) Series data |
| Locality Data: | Click here to view Anderson No. 1 Mica Mine (Swanson Mine; Swanson Lithia Mine; Old Lithia Mine; Chatham Lithia Mine), East Hampton (Chatham), Middlesex County, Connecticut, USA |
| Photo Gallery | View Gallery (7 photos) |
| Data Identifiers |
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| Mindat Occurrence Record ID: | 130268 |
| Long-form Identifier: | 1:3:130268:4 |
| GUID (UUID V4): | 2ee45ea2-3e36-4b3f-9f04-5c11377f19ec |
| Nearest other occurrences of Columbite-(Fe)-Columbite-(Mn) Series |
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| 1.5km (0.9 miles) | βHurd State Park quarries, East Hampton (Chatham), Middlesex County, Connecticut, USA |
| 1.6km (1.0 miles) | βWorth and Selden Quarries (Victoria Quarry), East Hampton (Chatham), Middlesex County, Connecticut, USA |
| 1.7km (1.1 miles) | βHalberg Quarries (Eureka Quarry; Cook Quarry; Gem Stone Quarry), East Hampton (Chatham), Middlesex County, Connecticut, USA |
| 3.3km (2.1 miles) | βQuarry Hill (Brainerd Quarries; Shailor Quarries), Haddam Neck, Haddam, Middlesex County, Connecticut, USA |
| 4.0km (2.5 miles) | βNathaniel Cook house, Haddam, Middlesex County, Connecticut, USA |
| 4.7km (2.9 miles) | βMt. Tom prospects, Moodus, East Haddam, Middlesex County, Connecticut, USA |
| 5.1km (3.2 miles) | βJail Hill Road locality (Jail Hill Quarry), Haddam, Middlesex County, Connecticut, USA |
| 6.5km (4.0 miles) | βBecker Quarry, East Hampton (Chatham), Middlesex County, Connecticut, USA |
| 6.7km (4.2 miles) | βState Route 9 Interchange 13 - Beaver Meadow Road, Haddam, Middlesex County, Connecticut, USA |
| 7.1km (4.4 miles) | βHewitt Gem Quarry (Herb's Gem Quarry; Sawmill Quarry), Haddam, Middlesex County, Connecticut, USA |
| References |
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Anderson No. 1 Mica Mine, East Hampton, Middlesex County, Connecticut, USA