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Geologically, Stamford is underlain by schists and gneisses of the Ordovician Trap Falls and Golden Hill formations, intruded by Ordovician unnamed felsic orthogneiss and meta-diorite known as the Harrison Gneiss. These are part of the Connecticut Valley terrane.
Coordinates are for City Hall.
Brown (1930) documented some scattered mineral finds in Stamford:
"In Stamford, at the West Avenue Quarry located about one and one-quarter miles from the center, fine specimens of blue microcline feldspar, radiations of stilbite, augite, and a few crystals of pyroxene have been found.
"At Shippan Point a number of years ago a drift boulder of vesuvianite was found.
"On North Stamford Avenue about two miles from the center, good sized iron garnets have been obtained."
Mineral ListMineral list contains entries from the region specified including sub-localities
18 entries listed. 15 valid minerals.
Localities in this Region
- Fairfield Co.
- Fairfield Co.
The above list contains all mineral locality references listed on mindat.org. This does not claim to be a complete list. If you know of more minerals from this site, please register so you can add to our database. This locality information is for reference purposes only. You should never attempt to visit any sites listed in mindat.org without first ensuring that you have the permission of the land and/or mineral rights holders for access and that you are aware of all safety precautions necessary.
Brown, Samuel C. (1930): Mineral Collecting In Southwestern Connecticut. Rocks & Minerals, vol. 5, no. 1, p. 13.