Go to mystic forge -
You will need:
2 stacks (500) of any of these items - sticks of butter, soft wood, green wood logs, green wood dowels, hard wood logs, iron ore.
then add
1 mystic coin.
1 glob of ectoplasm.
Results:
You will get a mystic chest which when used can give you jewels worth anything from 10s - 2g, pieces that allow you to make a portable mystic forge and some useless tonics.
Basically it's an expensive gamble unless you just want to make a portable mystic forge.
To make the portable mystic forge you need to combine one of each of the four common pieces, then put the new piece with one of each of the rare pieces + 50 mystic coins.
Also, this mystic chests are going to be in the game for a limited-time.
Good luck.