This is a pretty accurate map of the various varieties of Turquoise located in the Southwestern United States. It shows the types and colors that are mined today and those that are no longer in production. It even shows what a Turquoise specimen in China looks like and also has an example of a Turquoise specimen from Mexico. This is a very useful key to trying to learn what your grandmothers old Squash Blossom necklace is made out of and if you are curious to just learn where some of the beautiful earrings you have just bought come from. As it is also a giant postcard you can send it back home to your relatives along with a pair of earrings! We also have a laminated poster size version of the map/postcard!!!