for me small wooden gear+ small wooden gear. easily take 1 char to the forest and collect lauans 1 lauan equals to 6 small wooden gear.You can make lauan woodx2 via stone knife, and than small wooden gearx3 via wooden saw.
Ofc you can sit on toilet and wait for muck. If you lazy and play in an expensive server you can buy copper ores in kelan (10g/ea 500g/stack which isn't a big deal where origianl rubber is 400g for example... )
but you can use anything which is low rank (1-3) cause they are the best.
But don't Mix any of these whit each other: sea salt , common stone , organick muck you'll get rank1 stuffs back which means you didn't leveld your alcehmy.
Good luck on training :)