I found several more web sites listing mineral locations.
http://www.mineralmundi.com Index of Mineral locations by Country.
http://www.indexmundi.com/en/minerals/ – Index of Locations by Mineral Species
http://www.minport.com/minregions.php – Lists mineral deposits by Region. These appear to current operating mines.
http://gpex.ca/index.php – Site for Canadian Gold Prospecting.