James Green<p>Lithic materials subjected to heat change color differently depending primarily on 3 things; the amount of heat, the length of time exposed to heat, & the amount of iron molecules in the matrix. <a href="https://mastodon.online/tags/lithics" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>lithics</span></a> <a href="https://mastodon.online/tags/archaeology" class="mention hashtag" rel="nofollow noopener" target="_blank">#<span>archaeology</span></a></p>