The Geotek RXCT system is Geotek’s most flexible and capable X-ray CT system that acquires both 2D X-ray transmission images and 3D X-ray CT volumes from lined whole core, split core, slabbed core, cores in singular boxes, and delicate cores that cannot be rotated. Automated rotation of the X-ray detector and source allows users to visualise and record three-dimensional structures within the cores. These rotational images are used for computed tomographic (CT) reconstructions. X-ray CT imaging provides valuable quantitative data as well as information about core quality for sub-sampling or further analyses.