Links

1. Resources & Books

Mineralogy

http://www.mindat.org/
http://www.handbookofmineralogy.com/ (a very complete database!)
http://www.minsocam.org/msa/openaccess_publications/ (notably for thin section microscopy)

Petrology

http://www.bgs.ac.uk/scmr/products.html (IUGS – SCMR rock names recommendations – currently down)

Topographic & geological maps

https://www.geoportail.gouv.fr/carte (French topographic maps)
http://infoterre.brgm.fr/viewer/MainTileForward.do (online French geological maps)
https://infoterre.brgm.fr/page/cartes-geologiques (offline French geological maps)
http://www.pcn.minambiente.it/viewer/ (Italian map service)
https://www.isprambiente.gov.it/it/banche-dati/banche-dati-folder/suolo-e-territorio (Italian geological maps)
http://www.suissegeo.ch/autres_pays.php (DEM and Landsat images around and in Switzerland)
https://doi.org/10.5067/ASTER/ASTGTM.003 (ASTER-GDEM Global Digital Elevation Model)
https://www.oldmapsonline.org/ (wonderful!)
https://www.openstreetmap.org/ (open maps)
https://extract.bbbike.org/ (extraction tool for OpenStreetMaps)

Mineral resources

http://www.mineralinfo.fr/

2. Lectures

Mapping and Structural geology

https://folk.uib.no/nglhe/StructuralGeoBook2ndEd.html
http://www.fault-analysis-group.ucd.ie/papermodels/papermodels.htm

Magmatic and Metamorphic petrology

https://serc.carleton.edu/NAGTWorkshops/petrology/index.html
https://serc.carleton.edu/research_education/equilibria/index.html
http://www.geosci.usyd.edu.au/users/prey/Granite/Granite.html#Ch2
http://christian.nicollet.free.fr/
http://www.whitman.edu/geology/winter/
http://www.geol.ucsb.edu/faculty/hacker/geo102C/lectures/
http://www.science.smith.edu/~jbrady/petrology/tour.php