• Specimen Number

  28

• Description

  Rounded boulder of massive, brown, resistant sandstone.  Verified by state survey.

• Classification

  Sedimentary. Sandstone. Arkose.

• Location & Occurrence

  Staff says likely from the "red beds that occupy a northeast/southwest trend across central and northeastern New Jersey," part of the Newark Supergroup, rift-basin.

• Geologic Age

  Triassic.  There are no other rocks so  undeformed that would qualify, though this seems unusually well cemented.

• Geoheritage

  Newark Group associated with breakup of Pangea and correlated with rocks from Georgia to Newfoundland, including the Connecticut specimen stone (#6).

• Links

  Link to State Geological Map from USGS.  Link to Division of Water Supply and Geoscience .

• Other

  Specimen seems much harder and more cemented than the Newark Rocks from Connecticut. But the color and texture is otherwise identical.

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