Pietraforte | A soil type typical of Panzano in Chianti in the Chianti Classico DOCG region of Tuscany. ‘Panzano’s bedrock is mainly a bioplastic shelf limestone that is hard and compact, with a high calcium carbonate content that was formed in the Cretaceous period (Carmignani et al, 2004). It was used historically as a building and load-bearing material,’ (Ian D’Agata, 2019, p280). Not to be confused with Pietra Serena.
Dr Ian d’Agata, Native Wine Grape Terroirs (University of California Press, 2019).
Carmignani, L., and A. Lazzarotto. 2004. Geologic Map of Tuscany (Italy): Regine Toscana. Special Edition for the 23rd International Geologic Congress. Florence. Litografia Artistica Cartografica.