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Maine Feldspar Quarry, East Mount Apatite District, Auburn, Androscoggin Co., Maine, USA

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Latitude & Longitude (WGS84): 44° 5' 16'' North , 70° 17' 29'' West
Latitude & Longitude (decimal): 44.0877777778, -70.2913888889
Granite pegmatite. Eastern Mt. Apatite group - Oxford pegmatite field.

The Maine Feldspar Co. leased the area in 1902 which resulted in the largest commercial mining excavation at Mount Apatite. Feldspar was mined chiefly for the china and porcelain industry and was first transported to Topsham and later two miles south to their processing plant, established in 1906, at Littlefield Station.

Mining production averaged one hundred and fifty tons of spar each month. The miners, ever mindful of gem material and good specimens, initially sold minerals to John Towne of Brunswick, Maine to handle the disposition of this precious byproduct, until his death, but many local dealers distributed minerals and gem from this locality.

Edson Bastin of the USGS visited the site in August 1906 and again in October 1907. Commercial mining ceased operations in the October, 1929.
Currently owned by the City of Auburn, the Maine Feldspar Quarry is only a small part of the 325 acre “Mount Apatite Park”. Promoted as a multi-use park, it allows hiking, mountain biking, snowshoeing, limited snowmobiling and mineral collecting. Although collecting has no fee and does not require special permission, the City of Auburn Parks and Recreation Department should be contacted for specific collecting rules.

Mindat Articles

Lithia Pseudomorphs at Mt. Apatite, Maine, Eastern Group by Douglas Watts

Mineral List

66 entries listed. 50 valid minerals. 1 erroneous literature entry.

The above list 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.


Bastin, Edson S. (1911): Geology of the Pegmatites and Associated Rocks of Maine.

Perham, Jane C. (1985): Maine’s Treasure Chest.

King, V. and Foord, E. (1994) Mineralogy of Maine, volume 1.

King, Vandall T. (2000) Mineralogy of Maine, volume 2.

King, V. T. (2009) Maine Feldspar, Families, and Feuds.

Maine Geological Survey Publication: Mount Apatite Park, Auburn, ME.

City of Auburn Parks and Recreation: Mt. Apatite Park Trail Map and Park Rules.

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