3.1.4. Textures

Texturally, mineral maps from both Boliden AB and CSM reflected the recorded BSE image. The scan resolution was higher for Boliden AB (5 μm pixel size compared to 10 μm for CSM) but in both maps shapes of grains, cracks, and inclusions were clearly visible (Figure 7). Only the fine-grained clusters of calcite, ankerite and goethite were not resolved but marked as a single phase for Boliden AB due to their less-detailed mineral list in which these minerals were simply categorized as Fe-Ox/Carbonates (Figure 7d,e). Micro cracks filled with chalcopyrite in pyrite and quartz were resolved for both data sets, but in higher detail in the CSM mineral map (Figure 7a,b). However, comparison to reflected light images showed that many fine cracks were lost in the BSE images and the mineral maps, for both data sets (Figure 7a,b).
