Quote:
Originally Posted by JMvS
BTW, I'm a geology grad student, and for me the surprise is rather that those discoveries have been made public only now. As per all our mineral resources and gemology courses, this area is well known as one of the richest and most diverse in the World.
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2nd that. I was an Art History student and wrote a paper as an undergrad on the Blue used in late Medieval/ Early Renaissance paintings (e.g. Giotto ~1300 CE), which was manufactured from Lapis Lazuli mined in Afghanistan.