For some reason i can see all the crafting recipes with zero skills on the test server. So here are the tool and weapon stats:
0 Mastery - Wood, Stone, Copper, Iron
1 Mastery - Silver
2 Mastery - Gold
3 Mastery - Titanium
4 Mastery - Amethyst, Diamond, Emerald, Ruby, Sapphire, Topaz
5 Mastery - None (Wild guess: Blink, Dark Matter, Rift, Oort)