Good for when you need to ground yourself you can cleanse your crystals by allowing them to rest in soil. This is particularly useful for stones which are associated or resonate with earth energy such as black tourmaline or red jasper. In order to use this method simply bury them outside in the dirt and leave them overnight – you may want to mark the spot so that you don’t forget where you have left them. 

 

As with other methods mentioned which involve water or potential moisture ensure that you research your crystals to be certain that the moisture from the ground will not damage them.