Sandstone porosity (3D recon)

A pseudocolored 3D reconstruction of 100 7.5 micron scans of an 1/8" core of sandstone impregnated with Woods metal, looking down through the top of the core. Sandstone matrix (green) has been rendered mostly transparent. Distribution of metal (yellow) defines the porosity. (Sample courtesy of Sid Green, Terratek and Dr. Larry Myer, Lawrence Berkeley National Laboratory)

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