If mining multiple ores at once, using either Varrock armour or the reward effect of a Shooting Star, the urn only fills with experience from the first ore. The others do not count. When a higher tiered mining urn is present in a player's inventory, a cracked mining urn will take priority in filling, meaning that any level 1 ore that is mined will fill the cracked urn rather than the others. However, any ore requiring higher than 1 mining will fill the higher levelled urns. This lower tier priority also applies to fragile, normal, strong, and decorated mining urns.