The walls of the Valley National Bank building (now Chase Bank) are made of stucco and native stone. There is definitely the influence of Frank Lloyd Wright in the design of this building. It is obvious in the organic curves and natural materials used in construction. The stone is called Yavapai schist and each stone seems to float in the curved walls that wrap around the parasols.
In this photo, you get a closer look at the “peanut brittle” textured walls and you can see how the minerals in some of the stones have painted the walls with a rust colored coating over the years.
This last photo shows the inside of the bank branch. You can see the curves of the walls and glass and the organic look and feel. I apologize for the quality of this photo. I snapped it rather quickly while no one was looking my way. Photographing the inside of a bank is tricky matter.