Figure 9.
This close-up image showcases a textured rock surface featuring various mineral components, notably granite, which is highlighted in yellow. Several arrows labeled "ASG" point towards specific areas in the rock. The layout indicates different mineral sizes and shapes, with granite pieces appearing amid a mixture of other rock materials. A scale bar is included at the bottom right, marked with "1 mm," to provide a reference for size. The arrangement of the minerals reveals the complexity of the rock, emphasizing different textures and compositions present in the sample.Stain generated from granite aggregates 1 day after cutting a concrete core and covering it with plastic film (Yamada et al., 2013)