Keywords: Grounding the spiritual in the physical, Creating structure and self-discipline, Increasing honesty and practically
Flint is a sedimentary rock composed entirely of silica. It occurs as concretions, in band or nodule form, in limestones, especially chalk. Its color is usually black, brown or tan. It is marine in origin. Flint is a hard, tough stone which fractures conchoidally. Flakes of Flint were used by primitive peoples for making arrowheads, scrapers and other tools. Flint frequently contains invertebrate fossils. What appears as crypto-crystalline silica in Flint may be organic Opal that has formed in the contained sponge spicules.