Latitude: 41°30'59"N
Longitude: 72°55'29"W
An old, long inactive traprock quarry in Peck Mountain on the West Rock diabase sill. Exact dates of activity are uncertain, but the quarry is not mentioned in literature older than Schairer (1931). It is active, though relatively small, on 1934 aerial photographs, the first available. Hiller (1971) calls it inactive.
Schooner (1961) calls this area "near Roaring Brook" or just "Roaring Brook", though that feature is 2.4 miles south of the quarry. He references Dana's System of Mineralogy 5th edition (1875), which correctly says Roaring Brook is 14 miles north of New Haven (the quarry is about 16.5). It is unlikely the quarry is that old and because Roaring Brook cuts a gorge through the sill, the brook is likely a separate locality.
The most productive area for minerals was at the northwest end. Analcime and natrolite, typically together with prehnite, were common there, but are rare at other traprock quarries in Connecticut.
References
- Schairer, J. F. (1931): The Minerals of Connecticut. State Geological and Natural History Survey, Bulletin 51, Hartford, Conn.
- Tschernich, R. (1992): Zeolites of the World, p.114.
- Weber, Marcelle H. and Earle C. Sullivan. (November/December 1995) CONNECTICUT MINERAL LOCALITY INDEX. Rocks & Minerals (Connecticut Issue), Volume 70, No. 6, p. 403.
- Hiller, John, Jr. (1971): Connecticut Mines and Minerals. Privately published.
- Schooner, Richard. (1961): The Mineralogy of Connecticut.
- Ryerson, Kathleen. (1972): ROCK HOUND'S GUIDE TO CONNECTICUT. Chester, Conn.: Pequot Press.
- Januzzi, Ronald. (1959): The Minerals of Western Connecticut and Southeastern New York State. The Mineralogical Press.
- Januzzi, Ronald. (1976): Mineral Localities of Connecticut and Southeastern New York State (Taylor Assoc./Mineralogical Press).
- Brunet, William M. (1980): Minerals of the Trap Rock Ridges of the Connecticut Valley With Emphasis on Reed’s Gap Quarry Near Durham. Rocks and Minerals, Volume 55, Number 6.
Mineral List
16 entries listed. 10 valid minerals.
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