I've read that blue Lapis lazuli stones were used in ancient ziggurat monuments for the high levels. Unfortunately can't find any good sources now. http://en.wi

I've read that blue Lapis lazuli stones were used in ancient ziggurat monuments for the high levels. Unfortunately can't find any good sources now. http://en.wikipedia.org/wiki/Lapis_lazuli http://en.wikipedia.org/wiki/Lapis_lazuli The same blue stones were used in Tutankhamon's mask. I'm skeptical of these kind of articles.