Flint (flint stone) - this is the hardest and hardest of simple natural stones.
Often the flint stone is colored by oxides of iron and manganese in different colors, with smooth transitions between them. In ancient times, flint fragments were used to cut fire. Ancient man was used to make weapons and household items (arrowheads, flint knives, etc.)
Often the flint stone is colored by oxides of iron and manganese in different colors, with smooth transitions between them. In ancient times, flint fragments were used to cut fire. Ancient man was used to make weapons and household items (arrowheads, flint knives, etc.)