the Korans also look much thicker than what Pope John Paul II has in his hands. However, the size of the paper and printing?
I have 5 Korans - 3 English (including a paperback that is only about an inch thick or less), 1 Arabic and one ‘parallel’ one (that I got because I didn’t know they existed). They all vary in color, and thickness.
On topic, do I think this is POSSIBLE? Yes. Theoretically it is possible. Do I think it likely? No, not in the least.