BerylCoatesville pegmatite locality, Coatesville, Valley Township, Chester Co., Pennsylvania, USA
Photo: Bruce T. Mitchell Latitude: 39°59'0"N
Longitude: 75°49'30"W
References
Lapham, Davis M. and Geyer, Alan R. (1965), Mineral Collecting in Pennsylvania, also (1969) edition.
Montgomery, Arthur (1969) Dumortierite chapter in The Mineralogy of Pennsylvania, 1922 - 1965, Special Publication No. 9, The Academy of Natural Sciences of Philadelphia, sponsored by The Mineralogical Society of Pennsylvania: 43 - 44.
Reed, Juliet C. (1976), Annotated Bibliography of Minerals New to the Pennsylvania List - 1965-1974, Mineralogical Society of Pennsylvania, Inc.: 70.
Mineral List
11 entries listed. 8 valid minerals.
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