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Rocks & Minerals (1946): 21: 278.

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Year1946
Original EntryRocks & Minerals (1946): 21: 278.
Mindat Ref. ID16191607Long-form Identifiermindat:1:5:16191607:7
GUID0
Full ReferenceRocks & Minerals (1946): 21: 278.
Plain TextRocks & Minerals (1946): 21: 278.

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LocalityCitation Details
Dyer Quarry, Gibraltar, Birdsboro, Berks County, Pennsylvania, USA
H&K Birdsboro Materials Quarry (Dyer Trap Rock Quarry; Hay Creek Trap Rock Quarry), Hay Creek, Birdsboro, Berks County, Pennsylvania, USA

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