This requires you to have both mining and engineering.The route that you should follow is:
The main idea of this is to farm saronite and clouds.
Like with most other farming methodes it's best to do this at night, but at 19.00 pm this is what I got in about 30 minutes:
109x Saronite Ore
3x Titanium Ore
4x Eternal Fire
1x Eternal Water
4x Eternal Earth
3x Eternal Shadow
1x Crystallized Air
1x Crystallized Fire
7x Crystallized Shadow
8x Crystallized Earth
1x Crystallized Water
1x Chalcedony
1x Shadow Crystal
1x Bloodstone
1x Sky Sapphire
Hope this could to be helpful for somebody.