Question Break event

Hi,

Im im creating a plugin. The purpuse of the plugin is to let a player mine a ore.
atm that the ore is mined the player should get a iron ingot, and the ore should be replaced with stone.

Here is my code. it breaks the block, but it won't drop any items or create a new block.

package com.hopstar.oreUpdate;

import org.bukkit.Bukkit;
import org.bukkit.Material;
import org.bukkit.World;
import org.bukkit.block.Block;
import org.bukkit.entity.Player;
import org.bukkit.event.EventHandler;
import org.bukkit.event.Listener;
import org.bukkit.event.block.BlockBreakEvent;
import org.bukkit.plugin.java.JavaPlugin;

public final class oreUpdate extends JavaPlugin implements Listener {


@Override
public void onEnable(){
Bukkit.getPluginManager().registerEvents(this, this);
}
@EventHandler
public void eventBreakIron(BlockBreakEvent event) {
Block block = event.getBlock();
Player player = event.getPlayer();
final World world = player.getWorld();
int x,y,z;
x = block.getX();
y = block.getY();
z = block.getZ();
world.getBlockAt(x,y,z).setTypeId(52);
}



}
​