Locality type: | Quarry |
Classification |
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Species: | Tantalite-(Mn) |
Formula: | Mn2+Ta2O6 |
Comments: | Comstock (1880) analyzed scant material found by Brush and Dana with a gravity of 6.5, almost no Fe, and niobium to tantalum atomic ratio of 1:1.04 making it just barely tantalite-(Mn). Maroon, translucent micro crystals in cleavelandite. |
Habit: | subhedral prismatic micro crystals |
Colour: | maroon |
Abundance at site: | Very Rare |
Confirmation |
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Validity: | Believed Valid |
Associated Minerals Based on Photo Data: |
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Elbaite | ⓘ1 photo of Tantalite-(Mn) associated with Elbaite at this locality. |
Muscovite | ⓘ1 photo of Tantalite-(Mn) associated with Muscovite at this locality. |
Quartz | ⓘ1 photo of Tantalite-(Mn) associated with Quartz at this locality. |
Data |
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Mineral Data: | Click here to view Tantalite-(Mn) data |
Locality Data: | Click here to view Fillow Quarry (Branchville Quarry; Branchville Mica Mine; Smith Mine), Branchville, Redding (Reading), Fairfield County, Connecticut, USA |
Data Identifiers |
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Mindat Occurrence Record ID: | 704013 |
Long-form Identifier: | 1:3:704013:9 |
GUID (UUID V4): | 3e5789b1-b296-49d1-b652-9ba080b0b512 |
Nearest other occurrences of Tantalite-(Mn) |
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79.3km (49.3 miles) | ⓘStrickland Quarry, Strickland pegmatite, Collins Hill, Portland, Middlesex County, Connecticut, USA |
80.2km (49.8 miles) | ⓘHewitt Gem Quarry (Herb's Gem Quarry; Sawmill Quarry), Haddam, Middlesex County, Connecticut, USA |
80.4km (50.0 miles) | ⓘWalden Gem Quarry, Portland, Middlesex County, Connecticut, USA |
81.4km (50.6 miles) | ⓘAnderson No. 1 Mica Mine (Swanson Mine; Swanson Lithia Mine; Old Lithia Mine; Chatham Lithia Mine), East Hampton (Chatham), Middlesex County, Connecticut, USA |
References |
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Fillow Quarry, Branchville, Redding, Fairfield County, Connecticut, USA