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Edenville, Town of Warwick, Orange Co., New York, USA

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Latitude & Longitude (WGS84): 41° 16' 33'' North , 74° 24' 41'' West
Latitude & Longitude (decimal): 41.27583,-74.41139
Köppen climate type:Dfa : Hot-summer humid continental climate

The Town of Warwick, New York, covers approximately 104 sq. miles. Edenville, along with Amity, is among many unincorporated areas within the town. Edenville is approximately 2 miles east of Amity and these locality designations represent essentially the same area. The co-ordinates given are for the village of Edenville itself, but all of the localities are on a ridge to the west. Virtually all the minerals listed for the Amity – Edenville area occur in the Franklin Marble. Amity is near the center of the marble outcrop belt but Edenville proper is actually east of Amity in country mostly underlain by Paleozoic dolomites and slate. Specimens simply labeled "Edenville" historically are either glacially transported boulders or were found in place on what the local collectors call "Edenite Hill" (q.v.). These localities are near the northern terminus of the Precambrian Franklin Marble Belt.

Historical locality data put on old lables depended on how the collector approached the area. If one came from the Franklin, NJ area there was probably a tendency to arrive at Amity first. If one came by way of the Village of Warwick the route to the collecting area may have passed through Edenville.

This area has attracted collectors since the early 19th century. Since the landscape is generally gentle and outcrops are small and scattered it was originally a “stone wall fence” locality, but several specific collecting pits are known. A few outcrops that yielded unusual mineral assemblages, such as large spinels, were thoroughly excavated with black powder. In the present era the area is gradually suburbanizing and so exposures are occasionally available in the foundation excavations for the new "McMansions". Development has also made access to historical localities difficult and much of Edenite Hill is under development.

Mineral List

Mineral list contains entries from the region specified including sub-localities

44 valid minerals. 2 (TL) - type locality of valid minerals.

Regional Geology

This geological map and associated information on rock units at or nearby to the coordinates given for this locality is based on relatively small scale geological maps provided by various national Geological Surveys. This does not necessarily represent the complete geology at this locality but it gives a background for the region in which it is found.

Click on geological units on the map for more information. Click here to view full-screen map on

Early Ordovician - Cambrian
470 - 541 Ma

ID: 2723775
Wappinger Group

Age: Paleozoic (470 - 541 Ma)

Stratigraphic Name: Wappinger Group

Description: (Including Fishkill limestone and dolostone): Copake Formation ?-limestone, dolostone; Rochdale Formation-limestone, dolostone; Halcyon Lake Dolostone-locally cherty; Briarcliff Dolostone; Pine Plains Formation-dolostone, shale, oolite; Stissing Formation-dolostone, shale.

Comments: part of Wappinger and Stockbridge Groups, Poughquag Quartzite, and Metamorphic Equivalents up to 4000 ft. (1200 m).

Lithology: Major:{limestone,dolostone}, Minor:{shale}, Incidental:{chert}

Reference: Horton, J.D., C.A. San Juan, and D.B. Stoeser. The State Geologic Map Compilation (SGMC) geodatabase of the conterminous United States. doi: 10.3133/ds1052. U.S. Geological Survey Data Series 1052. [133]

Data and map coding provided by, used under Creative Commons Attribution 4.0 License

Localities in this Region

This page contains all mineral locality references listed on 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 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.


Manchester, James G. (1931) The Minerals of New York City & Its Environs.
New York Mineralogical Club Bull., Vol. 3, No. 1,71.
New York State Museum Bull. 223,224.
Newland, David H. (July-August 1919), The Mineral Resources of the State of New York: 29.
Kearns, L.E., 1978, The Amity Area, Orange County, New York. The Mineralogical Record, V. 9, pgs 85 – 90.
Kearns, L.E., 1977, The Mineralogy of the Franklin Marble, Orange County, New York. Ph.D. dissertation, Univ. of Delaware, 211 p.
Volkert, R.A., Zartman, R.E., and Moore, P.B., 2005, U – Pb Geochronology of Mesoproterozoic Postorogenic Rocks and Implications for Posty-Ottawan Magmatism and Metallogenesis, New Jersey Highlands and Contiguous Areas, USA. Precambrian Research, V. 139, pgs. 1 – 19. (and references therein)

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