https://youtu.be/-0ehDRxX_og

This video is a short interview with an specialist in non-metallic deposits Ricardo Valls ORCID ID- https://orcid.org/0000-0002-5421-0914 Scopus Author ID: 7003369619 ResearcherID: S-6604-2018 Scopus Author ID: 35335510700 If you like this content, please "buy me a coffee" https://www.buymeacoffee.com/goldendroplets