American Mineralogist: An International Journal of Earth and Planetary Materials is a peer-reviewed scientific journal covering the general fields of mineralogy, crystallography, geochemistry, and petrology.

It is an official journal of the Mineralogical Society of America, publishing both subscription and open access articles.

The editors-in-chief are Hongwu Xu (Los Alamos National Laboratory), and Don Baker (McGill University).

The journal was established in 1916, with the first issue appearing in July of that year, under the auspices of the Philadelphia Mineralogical Society, the New York Mineralogical Club, and the Mineral Collectors' Association.

[2] A database, the "American Mineralogist Crystal Structure Database", of all crystal structures published in American Mineralogist, Canadian Mineralogist, European Journal of Mineralogy and Physics and Chemistry of Minerals[a] is maintained and hosted at the University of Arizona with the Mineralogical Society of America, and the Mineralogical Society of Canada.