[ A quick laugh - rather at his expense. ]

Oh...No. It wouldn't help. At all. Lyrium isn't a magic-blocker or something like that. It actually facilitates magic. It's more like...

[ She thinks about it a moment. ]

Sort of like - a poison, really. My people have built up resistance to it over many, many years, by just living near it and being exposed to it in low doses. Someone unaccustomed to it, exposed to raw lyrium, will at least get sick, or go mad. Or die outright.