Described as being on the "grounds of the Pennsylvania Training School for the Feeble Minded.", 0.4 km (0.25 mile) north of State Road, and 1.6 km (1 mile) west of Media. Feldspar quarries, pegmatites, and exposures are nearby.
In "pyroxenite" and "metaperidotite."
References:
Gordon's Mineralogy of Pennsylvania (1922) p. 191
Mineral List:28 entries listed. 15 valid minerals.
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