Not to nitpick but because this is really cool: petrified wood is actually stone.<p><a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Petrified_wood" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Petrified_wood</a>