Geological samples can be extremely challenging to analyse using EBSD, not only are they non-conductive, but many rocks contain a large number of phases, typically with low symmetry and often producing relatively weak diffraction patterns. The challenge is twofold: firstly the EBSD detector needs to be sensitive enough to acquire good, high-resolution EBSPs in a short time period, and secondly, the software needs to be able to distinguish reliably between all the minerals present in the sample.