This unassuming and much overlooked stone can be essential ingredient in your crystal toolbox, with its soothing and calming properties, whilst it can also work on a higher vibrational level, helping to bring up past life memories when placed on the third eye. It works with the mind, calming it when over-active – try it under your pillow if a busy brain stops you sleeping, and it can also absorb anger, promote positive thoughts and assist travelling