Mining level

Mining level refers to the material strength of a tool necessary to mine any given material. If an ore requires a mining level greater than that of the tool used to mine it, the mining process will take significantly longer and the block will not drop any materials when broken.
==Vanilla mining levels==
Mining Level	Pickaxe
0 	Wooden Pickaxe
0 	Golden Pickaxe
1 	Stone Pickaxe
2 	Iron Pickaxe
3 	Diamond Pickaxe
Mining Level	Ore
0 	Stone
0 	Coal Ore
0 	Nether Quartz Ore
1 	Iron Ore
1 	Lapis Lazuli Ore
2 	Diamond Ore
2 	Emerald Ore
2 	Gold Ore
2 	Redstone Ore
3 	Obsidian