Board Thread:Off Topic/@comment-24993958-20151106142232/@comment-25396609-20151109060911

Fun fact about meteoric iron; most iron used in katana and other japanese swords come from deposits created by crashed meteors, this iron was of extraordinarily low quality and equivalent to pig iron used for cheap work in other countries. The folding of the steel was a technique devised to work out the massive number of impurities, and was necesarry just to make the metal be usable.