Onyx... An ancient stone that's been used as an amulet of protection, strength and self-mastery. It helps fight fears; it boosts self-confidence.
It protects against psychic attacks. It promotes vigor, steadfastness and stamina. It enhances intuition and helps one to focus his energy into positive things. It is excellent for grounding; it deepens one's connection to Earth.
Chakra stones include: Clear Quartz, Amethyst, Sodalite, Yellow Aventurine, Orange Carnelian, Red Carnelian