Tried looking at fountan mineral prices right now (used highest buy in available stations)
They are the following:
Tritanium 3,20
Pyerite 3,23
Mexallon 31,21
Isogen 55,19
Nocxium 60,00
Zydrine 1 900,00
Megacyte 3 724,00
Morphite 6 000,00
This would give the following corp prices:
Tritanium 2,56
Pyerite 2,58
Mexallon 24,97
Isogen 44,15
Nocxium 48,00
Zydrine 1 520,00
Megacyte 2 979,20
Morphite 4 800,00
Unless someone opposes I'll make them into the new offical corp prices.