Agate enhances mental function, improves concentration, enhances perception and analytical abilities. It is a soothing and calming gemstone that heals inner anger, anxiety and helps in the strengthening of relationships. Agate instills security and safety. Onyx crystals connect you with the realm of the night, where your true self can be found. Black onyx is a protection stone. Its purpose is to help prevent the drain of personal energy while at the same time absorbing and transforming negative energy. Quartz This white crystal is considered a “master healer.” It's said to amplify energy by absorbing, storing, releasing, and regulating it. It's also said to aid concentration and memory. Physically, clear crystals are claimed to help stimulate the immune system and balance out your entire body. Citrine promotes motivation, activates creativity and encourages self-expression. Enhances concentration and revitalises the mind. It releases negative traits, depression, fears and phobias. Emotionally balancing. The serene energy of this stone makes Amazonite a powerful heart chakra stone, helping to release toxic emotions and other unwanted energy from your heart space. Eye of the Tiger Tiger’s Eye crystal was also used by other ancient civilizations, like the Ancient Chinese, who believed it would bring good fortune to the wearer. In Eastern mythology, the magical tiger represented courage, integrity and power, so ancient civilizations associated Tiger’s Eye crystal with these properties and this mythological creature.