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Wardwell Quarry (Pechnic Quarry), Albany, Oxford Co., Maine, USA

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Latitude & Longitude (WGS84): 44° 15' 51'' North , 70° 44' 40'' West
Latitude & Longitude (decimal): 44.26417,-70.74444
Köppen climate type:Dfb : Warm-summer humid continental climate

Granite pegmatite. Feldspar quarry in Oxford pegmatite field. First worked in the 1930's. Located on the Roy Wardwell farm. Leased by Joe Pechnic in 1950's.(Ref.: Rocks & Min. 21:744-745; 22:1136; Stevens, 1972: Gems & Minerals of Oxford Co.)

Mineral List

19 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

298.9 - 358.9 Ma

ID: 3024251
Carboniferous alkali feldspar granite (muscovite accessory mineral)

Age: Carboniferous (298.9 - 358.9 Ma)

Description: Muscovite-biotite granite; includes plutons: 46 - Sebago (Main phase) (ME101, ME102); 47 - Sebago (Westbrook phase) (ME103).

Comments: Islesboro Formation is of Late Proterozoic age. Consists of interbedded pelite, siltstone and sandstone, limestone and dolomite, conglomerate, rhyolite, and basalt. D.B. Stewart (1990, oral commun.) considers Islesboro to be distal facies of North Haven Greenstone, Ellsworth Schist and schist at Columbia Falls (eastern coastal ME). (ME072) Unit description from USGS GEOLEX website (ME078). GS - Greenschist facies; AA - Low rank amphibolite facies; Protolith N - Limestone and/or dolostone

Lithology: Major:{granite}

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

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.


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Cameron, Eugene N.; and others (1954) Pegmatite investigations, 1942-45, in New England. USGS Professional Paper 255.

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