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USA | |
| Januzzi, Ron E., Seaman, David M. (1976) Mineral Localities of Connecticut and Southeastern New York State and Pegmatite Minerals of the World. The Mineralogical Press, Danbury, Connecticut, USA. |
| Januzzi, Ron E., Seaman, David M. (1976) Mineral Localities of Connecticut and Southeastern New York State and Pegmatite Minerals of the World. The Mineralogical Press, Danbury, Connecticut, USA. |
| Eric Quinter collection |
| Huff, R. C., R. G. Huff, J. Vajdak. (1996), An Occurrence of Bismutoferrite in Portland, Connecticut. Rocks & Minerals: 71(3): 197. 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 Rocks & Minerals (1955) 30:351-358 Ralph Lieser of Pappy’s Beryl Shop, East Hampton and Howard Pate of Fluorescent House, Branford, Connecticut. |
| Schooner, Richard. (1955): 90 Minerals from 1 Connecticut Hill. Rocks & Minerals: 30(7-8): 351-8. |
Case Quarries, Portland, Middlesex County, Connecticut, USA