Had to check to see if it works, old formula for soupleace gem with transfiguration works with gem dust too.
So use the byproduct of cutting 5 different gems and add just one more cut - I used emerald cut emerald and gem dust from 5 more gems and got soulpeace gem.
This machine plus gatherer are my favorite parts of this SN.
PS Gatherer will increase the number of gem dust you get as a byproduct, without that trait it is average 1-2 gem dust per gem cut, while with it it is 2-3 gem dusts. Not shore how you got 5 from one cut.
Isn't there a way to store the dust since it is an alchemy ingredient? Did the dust you left on the ground become a fulll tiberium or just more dust?
It grows into a full spire cut tiberium but you can store it in chest and probably in cabinet as other gem dusts.