Mining a Shooting Star does not fill the urn. Neither does mining in the living rock cavern; however, a decorated mining urn will work. If mining multiple ores at once, using either Varrock armour or the reward effect of a Shooting Star, the urn only fills with xp from the first ore. The others do not count. Additionally, the mining urn cannot be used at a mining plot inside the Clan Citadel or on divine tear rocks in the Battle of Lumbridge.