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Tantalite from
Case Quarries, Portland, Middlesex Co., Connecticut, USA

Mineral Species
Species:'Tantalite' (not an IMA apprroved species)
Formula:(Mn,Fe)(Ta,Nb)2O6
Description
Comments:Listed generically by the references as part of the columbite-tantalite series. No analyses of end-member tantalite from Case are known.
Quality of samples:not specified / average specimens
Confirmation
Validity:Erroneously Reported
References
References:Schooner, Richard. (1958), The Mineralogy of the Portland-East Hampton-Middletown-Haddam Area in Connecticut (With a few notes on Glastonbury and Marlborough). Published by Richard Schooner; Ralph Lieser of Pappy’s Beryl Shop, East Hampton; and Howard Pate of Fluorescent House, Branford, Connecticut.; Cameron, Eugene N., Larrabee David M., McNair, Andrew H., Page, James T., Stewart, Glenn W., and Shainin, Vincent E. (1954), Pegmatite Investigations 1942-45 New England. USGS Professional Paper 255.
Data
Mineral Data:Click here to view Tantalite data
Locality Data:Click here to view Case Quarries, Portland, Middlesex Co., Connecticut, USA
Nearest other occurrences of Tantalite
8.1km (5.0 miles) A White Rocks Quarry (Consolidated Quarry), White Rock District (White Rocks District), Middletown, Middlesex Co., Connecticut, USA
19.3km (12.0 miles) B Beaver Meadow Road - State Route 9 Interchange, Haddam, Middlesex Co., Connecticut, USA
192.7km (119.8 miles) C Gloucester, Essex Co., Massachusetts, USA
198.0km (123.1 miles) D Rockport, Essex Co., Massachusetts, USA
Mineral and/or Locality  
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