- Holding that the famous 'Schist Disc' was actually coated in a form of stone, using the enamel process, which the Egyptians incidentally invented.
... and how about this info! For it would seem that rocks could have an extra outer layer. This extra outer layer causes geologists to mistake it all for 'andesite' but if you ask them how the stones were carved, I'm sure you would have a lot of blank faces! "How it's carved" will answer the question of "what it's made of"!