Mineralogy of Pennsylvania-1922; Samuel S. Gordon, pg. 174
Pegmatite, about 1 mile west of Northbrook Station and 1 mile south of Glenhall Station. Discovery of Beryl crystals up to 50 pounds recorded in the mid 19th century (Seal, 1821, 39; genth, 1875, 71).
Mineral List:4 entries listed. 3 valid minerals.
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