One of my all time favorite stones is Azurite or Azurite with Malachite! It is also a copper mineral, and although I have found some beautiful pieces from Mexico and South America, in my opinion the finest quality stone comes from Morenci and Bidbee, Arizona.
It is generally a soft stone, but when you find some that is about the same hardness of turquoise it can polish up into spectacular deep blues and greens. I have also saw some with red or reddish brown cuprite in it as well.
I normally carry Azurite from Morenci but also have a little from Bisbee and Mexico. It makes striking pendants, rings and necklaces.