Hematite is the most powerful gemstone to use for grounding. It can help you clear away confusion and orient you toward practical action in the real world. It brings the energy of higher consciousness down through the chakras to your root, and helps you transform that energy into physical reality.
Chakra-Root, Solar Plexus
Zodiac-Aries
Element-Fire
Affirmation-My roots absorb goodness from the all-giving, bountiful earth, which fills me up and brings me serenity.