What was chert used for by Native Americans?

Chert was primarily used by Native Americans for creating tools like arrowheads due to its properties as a durable and easily worked stone. Its fine-grained texture allowed for the production of sharp edges when knapped, making it an ideal material for various tools needed for hunting and everyday tasks. Arrowheads made from chert were essential for hunting, as they could be crafted to have precision points that improved their effectiveness in securing food. The ability to produce reliable tools from chert significantly contributed to the survival and success of Native American communities. Other options like jewelry making, building structures, or decorative art, while possible uses for different materials, are not the primary historical applications of chert in Native American technology.