Chert is a fine grained sedimentary crystals composed of microcrystalline or cryptocrystalline silica. Chert is very similar to flint, connecting it to the fire element. Chert has a calming presences, allowing for a better night sleep. Chert enhances memory and helps you find lost items. Chert is protective and will redirect negative energy. Chert can also be used to request the presences of spirit guides.