Geological drill core analysis is useful for exploration purposes, and when you understand your sample CT data can provide quantitative ore grade information as shown in this case study, published in Computers & Geosciences.
The results correlate well with industry standard methods, with a hugely improved turnaround time compared to traditional analysis laboratories plus additional information on grain size distribution in 3D, which is not possible in any other way. The advantage to the geologist is that the method is nondestructive and the exact same samples can therefore quickly produce information by CT, followed by traditional slower methods for validation purposes. The paper is freely available for 90 days:
http://authors.elsevier.com/a/1RlXqMMTPLTET
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