Abrasion in production lines can be a source of contaminated products and/or malfunctioning machinery. Using micro-XRF it is straight-forward to classify steel particles with sizes down to 50 µm because their heavy matrix will allow a reliable quantitative analysis of the main elements. For the classification of Aluminum flakes usually heavy elements are of importance, whereas the main element is very light. Therefore, it is difficult to asses the alloy type of thin Aluminum particles. The fast mapping capabilities of the M4 TORNADO (PLUS) allow to quickly scan small Al particles and find the thickest part of the sample. This thick region is likely to give the most reliable results for a classification. The region of interest can be cut out from the Hypermap dataset and be quantified for classification.