Corundum locality (crystals also found loose in regional soils).
Abandoned corundum mine 3/4 mi. north of Shimersville (pegmatite). Large rough barrel-shaped crystal, sometimes asteriated.
Abandoned iron mine 1 1/4 mi. north of Shimersville (precambrian gneisses). Additionally, abandoned magnetite mine just south of town.
Refs.:
Mineralogy of Pennsylvania - 1922; Samuel S. Gordon pg. 209.
Mineral List:5 entries listed. 5 valid minerals.
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