The Crystal is for the Queen from the Snow Country Quest.
You go to the fourth floor of the Iceberg's Ice House.
You need both the Mysterious Ice & the Mysterious Crystal.
There is a quest between you, the Lord Chamberlain and his queen.
You collect the ice and the crystal for him and a battle between you and a monster begins. You will get Clear Devil's Spar and Experience for this.
InGame Name: ==BobMan==
LEO 3 mostly.
Lvl 3X Fire
Aspiring "Tank" :))