This sandstone shows evidence of burrowing.
Scanned by Dr. Franek Hasiuk's GeoFabLab (Department of Geological and Atmospheric Sciences, Iowa State University) from the original specimen.
Scanned with the MakerBot Digitizer Desktop 3D Scanner set on "Medium"
Submitted by: Franek Hasiuk,
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3D-Printable Model in STL Format ( 6.5MB Feb8 15)
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