Green stones is a commonly used term used to identify ophiolites, igneous and metamorphic rocks, likely to contain asbestos minerals. The dataset derives from the extrapolation of the official data of the most recent geological surveys carried out in the context of national and regional projects such as the CARG and CGR projects. The mapping, at a scale of 1:25000, already published in the cartographic repertoire since 2008, has been updated with the new geological surveys of the Spigno Monferrato sheet. It constitutes a level of knowledge for the management and use of excavated earth and rocks and also contains an indication of the specific lithology of the rocky substrate. - Coverage: Provinces of Savona, Genoa, La Spezia - Origin: Digitization from CARG and CGR geological maps
