Construction and Demolition Waste (C&DW) comprises a heterogeneous mixture of materials, including concrete, brick, marble, tile, asphalt, mortar, and plaster. Since concrete is the most widely used man-made material, and cement production remains a primary source of global CO₂ emissions, recycling of C&DW as secondary raw materials is essential for advancing the circular economy and preserving natural resources. While C&DW is generally utilized as filler, road base, or aggregate, the sequestration of CO₂ to produce recycled carbonated aggregate (RCA) has gained importance. However, effective valorization depends on comprehensive chemical and mineralogical characterization. In this study, C&DW from an earthquake waste disposal site in Malatya (Türkiye) was characterized by utilizing XRD, XRF, ICP, elemental (CHNS), Mineral Liberation Analysis (MLA), and TGA/DTA analysis techniques. XRF results indicated a complex composition primarily dominated by calcium carbonate (39.87% CaO), with significant concentrations of SiO₂ (17.963%) and considerable amounts of Al₂O₃ (4.146%). MLA revealed the complexity of the sample, as all the phases are intricately locked together, and the liberation required excessive grinding. The results further indicated that some valuable constituents (e.g., Al and Si) in C&DW can be recovered through metallurgical processing following liberation. Residual materials from hydrometallurgical treatment can subsequently undergo CO₂ sequestration-based carbonation to produce recycled concrete aggregates (RCA) for use in the construction industry.