The agates from Brazil are mostly mined from decomposed volcanic ash and basalt from the late Permian age. In Rio Grande do Sul the "agate mines" are normally just plowed fields in which loose agates are found and collected. Brazilian agates are very colorful stones with some of the most beautiful inclusion and structures imaginable. Agate is very hard and takes an excellent polish.
Brazilian Agate brings about an emotional, physical and intellectual balance. It aids in centering and stabilizing physical energy. Brazilian Agate harmonizes yin and yang. It is a soothing and calming stone which works slowly but brings great strength. It can bring hidden information to light.