Catlinite, also known as pipestone, is a type of soft, red stone primarily found in the Pipestone National Monument in Minnesota, USA. This stone is composed mainly of clay minerals and is valued for its workability and unique color. It has been used for centuries by Native American tribes to create ceremonial pipes, which are significant in their spiritual practices. The quarrying of catlinite has deep cultural importance, as it is often associated with peace and unity among tribes. The stone is traditionally carved into smoking pipes, which are used in various rituals and gatherings. Today, catlinite continues to be a symbol of Native American heritage and craftsmanship.