Correlation of equivalent quartz content, Slake durability index and Is50 with Cerchar abrasiveness index for different types of rock

• In sandstone, Q, EQC, and Is50 affected CAI.
• In metamorphic rock, that only mineralogical factor influenced CAI and the correlation between CAI and EQC was linear.
• In intrusive igneous rock, only EQC affected CAI and the correlation between CAI and EQC was exponential.