here is the skript copy and paste:
on break of gold ore:
if player's tool has enchantment of fortune:
event-cancelled
set {_fortune} to player's tool's level of fortune
set {_baseDrops} to 1
repeat {_fortune} times:
set {_baseDrops} to {_baseDrops} * 2
set {_drops} to new list
repeat {_baseDrops} times:
add (smelted gold ore) to {_drops}
loop {_baseDrops} times:
loop-values {_drops}:
set loop-value's display name to "&eGold Ingot"
add loop-value to player's inventory
#gold can be switched around as well as its name