Latitude: 41°38'18"N
Longitude: 72°35'43"W
Two parallel quarries and some nearby prospects in a granite pegmatites about which surprisingly very little has been written. One of the quarries could be the "new" Wiarda quarry, that Watts (1916) describes as:
"located in a feldspar deposit on a north and south ridge on the outskirts of South Glastonbury. Several irregular dikes are exposed, but little actual development work has been done to indicate the continuity of any particular dike or to ascertain the width of the bands rich in feldspar. A good quality of feldspar and graphic granite have been obtained from this property and 2,000 tons were reported as being quarried in 1911."
The only descriptions using the name Simpson are by Hiller (1967), who writes about the good
beryl,
muscovite and
microcline crystals he collected, and Betts (1999), who mentions good quality
aquamarine and "bright blue-green
hyalite opal". Scattered but well-formed
microlite crystals are also noteworthy.
Mindat Articles
Field trip report: Simpson Quarry by Matthew Kimball
Mineral List
39 entries listed. 28 valid minerals. 1 erroneous literature entry.
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References
- Hiller, John. (1967): COLLECTING AT SIMPSON QUARRY. Rocks and Minerals, Volume 42, No. 12, p.938-9.
- Weber, Marcelle H. and Earle C. Sullivan. (November/December 1995) CONNECTICUT MINERAL LOCALITY INDEX. Rocks & Minerals (Connecticut Issue), Volume 70, No. 6, p. 398.
- Stugard, Frederick, Jr. (1958) PEGMATITES OF THE MIDDLETOWN AREA, CONNECTICUT. USGS Bulletin 1042-Q.
- Betts, John. (1996): The Quarries and Minerals of South Glastonbury, Connecticut. George F. Kunz Competition Papers 1996. New York Mineralogical Club.
- Betts, John. (1999): The Quarries and Minerals of the Dayton Road District, South Glastonbury, Connecticut. Rocks and Minerals. Volume 74, Number 2. pp. 110-121.
- Watts, A. S. (1916): The Feldspars of the New England and North Appalachian States. U. S. Bureau of Mines Bull. 92.
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