Hello again, Pam. OK, we've done some more tests. Sorry it's such a long post.
Theory.
1. Each Location has 2 unique metals. One of these metals, when stacked on the Carter XL in a 4 + 7 arrangement, generates a Large Supernovium Ingot worth around 80,000.
2. It would appear that the formula works when you use just ONE of those unique metals from each location [Iridium, Mummitomium or Platinum].
3. I'm waiting to test using Large Mercury ingots [x 4] in slot one, and filling the other 7 slots with ordinary vials. My guess is that Platinum is the metal for China in this case.
Situation.
4. Our Sim has a basement workshop where the ingots and the Carter XL are located. Is the basement significant?
5. The game is played on an iMac [that shouldn't make a difference].
Results.
Every time we stack those three country-specific metals we get the same result - a BONUS Supernovium ingot worth about 80,000.
France/IRIDIUM [now done 4 times]
Input = [?], Output = Iridium 747, Copper 196, Supernovium 81,191.
Input = [1200], Output = Iridium 880, Copper 110, Supernovium 76,266.
Input = 1347, Output = Iridium 682, Copper 103, Supernovium 77,292.
Input = 1287, Output = Iridium 764, Copper 253, Supernovium 79,817
Egypt/MUMMUITOMIUM
Input = 16,565, Output = Mummitomium 14,426, Iridium 1580, Supernovium 79,772.
China/PLATINUM
Input = 3387, Output = Platinum 1209, Supernovium 80,907
Make of it what you will, but it certainly happens here, in the basement location. I would send a screen-shot, but I'm not sure how to do that.
Regards,
Slingsby