Figure 44. Radar chart clusters Milling Phase I Cluster 0: Characterized by intermediate values across most variables, without a marked dominance of any specific mineralogical type. It presents moderate hardness levels (BOND, DWI) and relatively balanced Fe and MgO contents, suggesting stable grinding behavior, without extreme hardness or abrasiveness conditions. Cluster 1: Marked by a high presence of serpentinized skarn, with elevated Fe, MgO, and chlorite contents, together with high hardness and comminution energy indices (BOND and DWI). This cluster represents a highly competent and abrasive ore, associated with more restrictive grinding behavior, higher energy consumption, and increased operational complexity. Cluster 2: Distinguished by a strong association with intrusive lithologies and elevated biotite (BI) and hardness (HARD) values. It presents relatively lower Fe and MgO contents, suggesting a hard but less abrasive ore compared to skarns, with a differentiated grinding response and potentially distinct comminution kinetics. Cluster 3: Mainly associated with hornfels, showing high MIC, BOND, and DWI values, reflecting a competent and heterogeneous ore. The combination of high hardness indices and mineralogical variability indicates highly variable grinding behavior, with direct impacts on process stability, particularly during transitions between primary and secondary grinding.
RkJQdWJsaXNoZXIy MTM0Mzk2