This is my Preseli Bluestone crystal and I absolutely adore it!  I use it so much at the bottom of my feet to really help ground my energy.  Preseli Bluestone is the crystal used at Stonehenge in the UK and I feel that this stone had a deep connection to the energy of Mother Earth.  When working with Bluestone, I feel like I am tapping into a forgot wisdom within myself.  It makes me feel grounded, supported and connected to the beautiful Earth!