User blog comment:The Milkman/Life Lessons From Skyrim, Part II/@comment-5280592-20121112002655/@comment-5280592-20121113223315

"Actually, that glass is malachite metal, it just looks like glass. It would be pretty useless otherwise. :P"

IRL:


 * Crystaline formed of copper and other crap. Would be more akin to expensive masonry.

TES:


 * Volcanic glass, somehow able to be treated like a metal


 * The edge doesn't wear away from normal weathering. The contact with air would turn it into a terrible weapon after an hour.

Sir,

I've fought the snowdemons in the center of five worlds. I've found none of this iron core you speak of. Don't challenge a geologist!

The Iron Core