Experiment in Geosciences - A Russian e-journal dealing with mineralogy, petrology, geochemistry (including isotopic geochemistry), crystallography, and geophysics. The site covers the years 1991 to 2001 only. - http://library.iem.ac.ru/exper/journal.html
The Journal of Petrology - Electronic version of a paper-printed journal publishing peer-reviewed research papers in the broad field of igneous and metamorphic petrology and petrogenesis. Everyone can access to the TOC, abstracts, and a free sample issue. - http://petrology.oxfordjournals.org/
Geological Materials Research - Open-access electronic journal of the Mineralogical Society of America. Publishes original peer-reviewed research, reviews, and papers on teaching in petrology, geochemistry, mineralogy, mineral physics, crystallography, and related fields. - http://gmr.minsocam.org/
European Journal of Mineralogy - Publishes original papers, review articles and short notes dealing with all mineralogical sciences, which include primarily mineralogy, petrology, geochemistry, crystallography and ore geology, as well as applied and technical mineralogy or any related fi - http://www.schweizerbart.de/j/ejm/index.htm
Crystallography Reviews - Publication of Taylor and Francis. Online version of the paper-printed peer-reviewed journal covering all theoretical and applied aspects of biological, chemical, industrial, mineralogical and physical crystallography. Though the journal is available only - http://www.tandf.co.uk/journals/titles/0889311x.html
Powder Diffraction Journal - Quarterly journal devoted to the use of the powder method for materials characterization - http://www.icdd.com/products/journals.htm