User blog comment:DancePowderer/Deus Ex Lacrima/@comment-7418318-20140209012913/@comment-7418318-20140209094043

How does that contradict my comment? Do you know just how many different crystals there are in out world?

The gems were just an example of how many different kind of things can be summed up in a single term. But even Crystal itself is such a broad term with many different kinds.