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USA | |
| Collected by A. Berluti in 2007 |
| Taylor, Steuben. (1824), Miscellaneous localities of minerals. American Journal of Science: s. 1, 7: 253-4. |
| Schooner, Richard. (1961), The Mineralogy of Connecticut. Fluorescent House, Branford, Connecticut. |
| Davis, James W. (1901): The Minerals of Haddam, Conn. Mineral Collector, v. 8, no. 4, pp. 50-54, and no. 5, pp. 65-70. |
| Schooner, Richard. (1958) THE MINERALOGY OF THE PORTLAND-EAST HAMPTON-MIDDLETOWN-HADDAM AREA IN CONNECTICUT (With a few notes on Glastonbury and Marlborough). |
| Williams, Horace S. (circa 1945): Article for New York Society of Mineralogists. Brainerd Public Library, Haddam, Connecticut. |
| Williams, Horace S. (circa 1945): Article for New York Society of Mineralogists. Brainerd Public Library, Haddam, Connecticut. |
| Moritz, Harold (n.d.) Personal Communication. |
| Schooner, R. (1958): The mineralogy of the Portland-East Hampton-Middletown-Haddam area in Connecticut (with a few notes on Glastonbury and Marlborough). East Hampton and Branford, Conn.: Richard Schooner, Ralph Lieser, and Howard Pate. |
| Schooner (1958) |
| 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 Schooner, Richard. (1955): 90 Minerals from 1 Connecticut Hill. Rocks & Minerals: 30(7-8): 351-8. Ralph Lieser of Pappy’s Beryl Shop, East Hampton and Howard Pate of Fluorescent House, Branford, Connecticut. |
| Rocks & Minerals (1955) 30:351-358 |
Unnamed building stone quarry, Collins Hill, Portland, Middlesex County, Connecticut, USA