Barahona, Dominican Republic
Known for: Larimar, Amber
Places: The Larimar Museum, The Larimar Shop
Dominican Republic is known for being both rich in Amber and Larimar. What separates larimar is that as far as we know, Dominican Republic is the only place in the world that contains this crystal. Larimar mines are hot tourist attractions, and gift shops typically will sell larimar based jewelry. I have had the privilege of meeting a Larimar whole-seller who was stationed at a booth in a resort. Not a bad place to setup shop.
Larimar is said to only be found in the province of Barahona, and was only discovered as late as 1974.