Replication Data for: crystals auctions in 2024

Title: Contemporary Mineral Market Data (2024). Description: This dataset (dataset_final_complet_v6.csv) compiles the results of public auction sales (online and in-person, via aggregators such as Drouot Digital) conducted over the year 2024. It constitutes the core corpus of the contemporary component of the comparative study, aiming to demonstrate the transformation of the mineral’s status into a product of spiritual and decorative consumption. Data Structure: The file includes 298 cleaned observations structured for econometric analysis, including: Transactional Variables: Hammer price (cleaned and converted to numeric format), low and high estimates, sale outcome. Mineralogical Characterization (Dummy Variables): Binary coding (0/1) of the presence of major mineral species (e.g., Mineral_Quartz, Mineral_Amethyst, Mineral_Fluorite, etc.). Aesthetic Attributes: Classification by dominant color (e.g., Color_Blue, Color_Green) used in hedonic regressions. Geographical Origin: Provenance of deposits (e.g., Origin_Brazil, Origin_Madagascar), allowing analysis of the globalization of supply. Marketing Semantics: Variables capturing sales rhetoric, notably the use of meliorative adjectives (variable Superior_Quality). Methodology: Raw data (textual descriptions) were processed using text mining techniques to extract the intrinsic and extrinsic characteristics of the objects, enabling the modeling of value determinants in the contemporary market.