Abstract: A workflow is provided that characterizes the hydraulic fracturability of a rock based on properties obtained from CT scanning and from non-CT based data. The characterization is based on obtaining a plurality of properties of a core sample as a function of axial location in the core sample. The workflow includes obtaining CT data from at least one CT scan of the core, obtaining heterogeneity data of the core, generating a heterogeneous rock analysis (HRA) model based at least on the obtained CT data and heterogeneity data; quantifying statistically significant distinct rock classes in the core, and assigning hydraulic fracturability index (HFI) values to each distinct rock class, as well as any HFI variation within each rock class. An HFI value is assigned to each rock class, and within a rock class, in the core and those values can be propagated to other locations in the same or surrounding wells.