Rock Rock Properties Testing Uniaxial Testing Shear Testing Tensile Testing Triaxial Testing Hydrostatic Testing Index Testing Geophysical Comparisons Other Tests Stress Measurement in Rock In-Situ Stress Testing By Overcoring – 2D In-Situ Stress Testing By Overcoring – 3D Hydrofracture Hydrojacking Core Ovality Borehole Breakout Surface Stress Measurement Stress Change Monitoring Tectonic Strain