on break:
	if event-block is stone:
        set event-block to air
		wait 5 tick
		chance of 12%:
			set block to iron ore
			stop
		chance of 8%:
			set block to gold ore
			stop
		chance of 5%:
			set block to diamond ore
			stop
        chance of 4%:
			set block to emerald ore
			stop
        chance of 24%:
			set block to coal ore
			stop
        chance of 100%:
			set block to stone
            stop