Open positions announced by organisations and societies:

Job announcement of the European crystallographic association (ECA)
Job announcement of the Special Interest Group - SIG#5
Job announcement of the DMG (Deutsche Mineralogische Gesellschaft = German Mineralogical Society)
Job announcement of the DGK (Deutsche Gesellschaft für Kristallographie = German Society for Crystallography)
Job announcement of the MinSoc (Mineralogical Society of Great Britain and Ireland)

JOB POSTING IN ELEMENTS
You would like to advertise your graduate school program?
You have a job opening in your department or in your company?
You are seeking applicants for a postdoctoral or PhD in the broad fields of geochemistry, mineralogy and petrology?
Make sure it gets advertised in Elements.
Every issue of Elements is shipped to 10,000 mineralogists, geochemists and petrologists and 1500 libraries in over 90 countries. Of these 10,000 scientists, more than 20% are students.
Elements offer special rates for job advertisements. Contact the managing editor for information (tremblpi@ete.inrs.ca). Every print ad includes a job posting on Elements website.
A web-posting only cost only $125 and can be up as long as desired.