Minerals (ISSN 2075-163X; CODEN: MBSIBI) is an international peer-reviewed open access journal of natural mineral systems, mineral resources, mining, and mineral processing. Minerals is published monthly online by MDPI. Open Access - free for readers, with article processing charges (APC) paid by authors or their institutions. High Visibility: indexed by the Science Citation Index Expanded (Web of Science), Scopus, Chemical Abstracts, INSPEC and GeoRef. Rapid Publication: manuscripts are peer-reviewed and a first decision provided to authors approximately 18 days after submission; acceptance to publication is undertaken in 2.6 days (median values for papers published in this journal in the second half of 2019). Recognition of Reviewers: reviewers who provide timely, thorough peer-review reports receive vouchers entitling them to a discount on the APC of their next publication in any MDPI journal, in appreciation of the work done. Impact Factor: 2.250 (2018) ; 5-Year Impact Factor: 2.453 (2018) Emailminerals@mdpi.com