Buy Garnet from Crystals By Nature. Garnet is not a single mineral, but a group of several closely related minerals. Garnet is available in a variety of colors, most widely known for being a dark-red gemstone. As a "Stone of Regeneration", Garnet boosts energy levels and the immune system while stabilizing internal chaos. Garnet is known for its protective energy and unique healing properties that provide aid for travel, nightmares, and bodily wounds. Garnet is most commonly known referred to as the "Stone of Health".