Talk:Desert Glass/@comment-26676076-20150717172612

It's Moldavite, which is basically the scientific term for Desert Glass. It is formed from flash heating of sand from lightning strikes or meteor impacts. Moldavite formed from lighting strikes are called fulgurites, while ones formed by meteor impacts are called tektites. Forms of Moldavite may be the source of the sand structures formed in the show.

Source of info belongs to http://gem-science.tumblr.com/