One of agate’s most enchanting attributes is its wide range of colors. From vibrant reds, oranges, and yellows to soothing blues, greens, and purples, agate boasts a palette that rivals a painter’s canvas. Like all types of agates, the colour and banded patterns of purple agates are produced naturally and are influenced by factors such as rock geochemistry, groundwater content, and pH levels. Although some agates occur in lighter colours and are dyed to deepen their shade for commercial uses.