Black onyx crystals are fantastic for spiritual protection & grounding, protection of the aura & enhances self-control, and acts a shield against negative energy. It also enhances self discipline, allowing more ease in following through on goals and completing tasks.Tigers Eye crystal can be used for growing your confidence and inner strength commonly known as the stone of courage. The chakras associated with tigers eye stone are the root and sacral chakra, helping you to remain grounded, build a safe and strong foundation, and find your energy & motivation once more. It's also good at warding off and sheilding you against any negative energy.