Help identify my turquoise cabochons!

I have two turquoise cabochons and one nugget.

  1. This first cab has a beautiful brown matrix, and is consistently the same blue throughout

  1. The second cab has varying blue hues throughout the stone, and there is a clear, quartz matrix present

  1. Stone number three is a nugget that belonged to my grandmother :two_hearts: The matrix is a chocolatey brown that varies from medium to light in color, while the turquoise varies in hues from a medium blue to a light green. The matrix also has a foggy white quartz (?) present.

Any guesses or info is appreciated. Thanks!