Thanks for that nice to see some (more) common sense being introduced into the conversation. Yeah, I don't know why that didn't occur to me. All you need is some reasonable outcrops of Garnet schists (for example) and bob's you're uncle, but it's the same basic principle I mentioned with the quartz. Certainly the Andes, being as tectonicly active as they are, would seem to be a reasonable place to look for such things.
but in Egypt.....