About half a second.
No, it has to be Cobblestone.
You need a pickaxe. Any pickaxe will work.
For Vanilla Minecraft, you will need a stone pickaxe (or better) to mine iron ore.
Mine a peice of "Stone" with A pickaxe
Stone pickaxe.
you mine stone with a pickaxe
No, you need at least a Stone pickaxe, to mine the Iron Ore.
You can find it in caves and you must dig it with pickaxe (not wooden or stone pickaxe)
You need an iron pickaxe. Also, you need a stone pickaxe to mine iron and a wooden pickaxe to mine stone.
Minecraft* You need a stone pickaxe to mine iron in Minecraft.
Stone pickaxe
you NEED a Cobble stone pickaxe.