Colours of gemmy phosphates from the Gavà neolithic mines (Catalonia, Spain): origin and archaeological significance 

Díaz-Acha, Yael; Campeny, Marc; Casas, Lluís; Di Febo, Roberta; Ibáñez-Insa, Jordi; Jawhari, Tariq; Bosch, Josep; Borrell, Ferran; Jorge-villar, Susana Esther; Greneche, Jean-Marc; Tauler, Esperança; Melgarejo, Joan Carles (2022-03-17)

In the Neolithic Gavà mines, variscite and turquoise were exploited for ornaments manufacturing, although some prospective pits and tunnels were dug on other similar greenish minerals such as smectite or kandite. A 3D study ...