Flint Flint is a hard, sedimentary cryptocrystalline form of the mineral Quartz,( a type of Chert.) Source: Worldwide. Flint is known from antiquity as a stone producing protective energy, knapped Flint was a source of tools and weapons as well as a fire starter when used with rocks of Pyrite Flint, is a stone of amazing power and intensity that brings the highest possible spiritual frequencies down into the physical world through manifestation. It grounds the etheric body more completely into the physical plane of reality. Flint is particularly useful if you find it difficult to keep your feet on the ground and your head out of the clouds. Wear it or keep it at your feet to anchor you to the planet. But be aware that flint is also a portal stone that can take you journeying into other realms Flint is beneficial to those involved in channeling, card reading, mediumship. saying and any other type of divination.