Hydrostatic permeability and transmissivity laboratory measurements (0-150 MPa) for intact, micro-fractured and macro-fractured Westerly Granite accompanied by Confocal Laser Scanning Microscopy (CLSM) scans of macro-fracture surfaces

This dataset contains laboratory measurements of hydraulic properties of Westerly Granite obtained during hydrostatic stress-cycling experiments up to 150 MPa. It includes transmissivity and permeability results for intact specimens, thermally micro-fractured samples, fabricated macro-fractures with controlled roughness, and Brazilian-split tensile fractures. All measurements were undertaken with deionised pore fluid and at room temperature 21°C. It includes associated experimental conditions (confining pressure and pore fluid pressure) and hydraulic measurement techniques. Processed numerical results and experimental metadata are provided in accompanying spreadsheets. Additional XYZ files contain 3-D surface data obtained via Confocal Laser Scanning Microscopy (CLSM), representing fracture topography used to quantify surface roughness and morphology.