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Wheatley Mines, Phoenixville Mining District, Schuylkill Township, Chester Co., Pennsylvania, USA
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Latitude: 40°8'N
Longitude: 75°31'W
 
 
This workings represent the consolidation of several earlier workings on the same deposit (Wheatley lode). It was a lead-silver mine. The mine was started in 1851 and closed in the 1860's. It was reopened in 1917 and closed in 1920. The larger enterprise was owned by Mr. Charles Moore Wheatley. Subsequently, when reopened, it was owned by Eastern Mining & Milling Co. The mine consisted of 5 levels with 2,108 meters of horizontal workings, 6 shafts (main engine shaft = 91 meters deep). Rock is adamellite, a granitic intrusive rock of Precambrian age (Mineralization, Triassic period or earlier). Mines include the Wheatley, Brookdale and Phoenix mines.

Note: sadly, many mineral specimens collected from this district, and especially those collected in the 19th century during the mines operation, have locality attributions listed as simply "Phoenixville". Although the Wheatley mine was the most prolific of these mines, and likely produced the majority of specimens now in collections (Charles Wheatley himself was an great mineral enthusiast, with a cabinet of over 6000 specimens from his mines), other mine sites, especially the Chester County Mine, were also quite prolific, and many specimens labled without specific mine site attibutions have since been inappropriately attributed to the more famous Wheatley mine. As such, most "Wheatley" specimens should be considered "district" specimens, unless otherwise noted as "definitively" emanating from the either the Wheatley mine or it's old dump site.

Coordinates given are for the sight of the Brookdale mine and dumps. Other mine coordinates are as follows:
South West Chester Mine: 40°06'15"N, 75°31'16"W.

Mineral List

Anglesite
Ankerite ?
Aragonite
Aurichalcite
Azurite
Baryte
Brochantite
Calcite
Cerussite
Chalcanthite ?
Chalcopyrite
var: Auriferous Chalcopyrite
'Chlorite Group'
Copper
Covellite
Cuprite
Descloizite
Dolomite
Dolomite
var: Ferroan Dolomite

Erythrite
Fluorite
Galena
var: Argentiferous Galena

Hematite
Hemimorphite
Hydrozincite
Malachite
Mimetite
Pseudomalachite
Pyromorphite
Quartz
Silver
Sphalerite
Sulphur
Vanadinite
Wheatleyite (TL)
Wulfenite


36 entries listed. 32 valid minerals. 1 type locality (valid mineral).

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.

References

Gordon, Samuel G. (1922), Mineralogy of Pennsylvania: 135-136.

Palache, C., Berman, H., & Frondel, C. (1951), The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana, Yale University 1837-1892, Volume II: 800, 893, 1085.

Montgomery, Arthur (Jan, 1963), "Gordon's Pennsylvania Mineral List," in Pennsylvania Minerals (PM), PM (3), Keystone Newsletter.

Lapham, Davis M. and Geyer, Alan R. (1965), Mineral Collecting in Pennsylvania: 66. (1969): 68.

Reed, Juliet C. (1976), Annotated Bibliography of Minerals New to the Pennsylvania List 1965-1974, The Mineralogical Society of Pennsylvania, Inc.: 66-67.

Acta Crystallographica: B36 (1980): 2145.

Rouse, et al (1986).

American Mineralogist (1986): 71: 1240.

Mineralogical Record (1989): 20(5): 369-384.

External Links

http://www.mindat.org/photo-443139.html - Wheatley Mine anglesite crystal figures (1854)

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Copyright © Jolyon Ralph and Ida Chau 1993-2014. Site Map. Locality, mineral & photograph data are the copyright of the individuals who submitted them. Site hosted & developed by Jolyon Ralph. Mindat.org is an online information resource dedicated to providing free mineralogical information to all. Mindat relies on the contributions of thousands of members and supporters. Mindat does not offer minerals for sale. If you would like to add information to improve the quality of our database, then click here to register.
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