Strength Tests Triaxial shear (10,000 psi confining pressure) Direct shear (20,000 lb normal, 40,000 lb shear) Unconfined compression (250,000 lb axial load) Direct tensile Indirect tensile Stress-Strain Tests Young's Modulus (confined, unconfined, static, dynamic) Poisson's Ratio (confined, unconfined, static, dynamic) Compressibility (linear and volumetric) Differential strain Analysis Biaxial Deformation Modulus (for overcoring tests) Creep Tests Unconfined (constant stress or constant strain) Confined (constant stress or constant strain) Heated (confined or unconfined to 300 deg. C) Thermal Tests Thermal expansion Thermal conductivity Thermal diffusivity Specific heat Other Tests Ultrasonic compressional and shear wave velocity Thin section and petrographic analysis Scanning electron microscopy Specific gravity Bulk and grain density Permeability Porosity Moisture content Particle size analysis