The two birthstones for the month of August are Peridot and Sardonyx. Peridot ranges in color from yellowish-green to brown and is said to have magical powers and healing properties, such as bringing the wearer power and influence and warding off nightmares.
As of 2014, most of the Peridot supply comes from Arizona, with some coming from Myanmar, China and Pakistan. Sardonyx is a form of onyx and is recognizable by its layers of reddish brown and white banding. Due to its banding, it has been used to fashion cameos and intaglios. The most attractive specimens of Sardonyx are found in India, although this gemstone can be found throughout the world.