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A Geoscience Digital Image Library

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TitleDiabase, Jersey City, Hudson County, New Jersey
DescriptionA medium grained dark gray intrusive igneous rock consisting of plagioclase feldspar and pyroxene. The feldspar is labradorite, and the pyroxene is augite. Biotite, magnetite and ilmenite are also present but cannot be seen in hand specimen. This sample is 10 cm across.
ChronostratigraphyUpper Triassic
LithostratigraphyPalisade diabase
LocationUSA ▹ New Jersey ▹ Hudson. Near Jersey City.
PhotographerMike Davis. 2001-02-22.
CollectionWard’s Collection of Classic North American Rocks #33.
Key wordsdiabase, New Jersey
Tech details766 KB. Hand specimen. Fujifilm FinePix S1Pro digital camera; 60mm AF Nikon micro lens.
GeoDIL number137