Thunder Bay and the area (just north of Duluth Minn.) has several
mines and shops specializing in amethyst. Do a web query on Thunder
Bay and Amethyst to get a few names. Most of the mines used to be east
of town but there is a new one just north as well (lived in Thunder
Bay for 4 years). There are shops, mines and fee digs
Another plus is the US dollar is worth about $1.50 Canadian so you
get more buying power.
Island Gem and Rock