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 need an iron pickaxe. Also, you need a stone pickaxe to mine iron and a wooden pickaxe to mine stone.
You can find it in caves and you must dig it with pickaxe (not wooden or stone pickaxe)
Minecraft* You need a stone pickaxe to mine iron in Minecraft.
Stone pickaxe
you NEED a Cobble stone pickaxe.