Zoom geographical details down to 1:5000 in Norway
Facts about the larvikite industry I
Facts about the larvikite industry II
Facts about the larvikite industry III
Wilfried Steffens' homepage on worldwide alkaline intrusions: Eudialyte
The Mont Saint-Hilaire homepage: Alkali-nuts
Paula Piilonen's homepage
Mineralogical-Geological Museum in Oslo
Geological Museum in Copenhagen
National Museum of Natural History in Stockholm
Mineralogical Society of America, American Mineralogist
Mineralogical Association of Canada, Canadian Mineralogist
European Journal of Mineralogy
Earth science journals
The Mineralogy Club of Antwerp, lots of links, the virtual quarry
Athena mineral database
Mineralogy and petrology research on the web
University of Würzburg, useful links for mineralogist
Norwegian Federation of Amateur Geologists
Swedish Federation of Amateur Geologists