Big Crystal Ore

Description
File down and polish a raw crystal for long enough to make one worthy of a fortune teller's crystal ball.

Trivia

 * There's a typo that confuses players about this treasure in the New World update. In the Treasure Book, the treasure generates 10 crystals, but after owning it, the description tells that it gives only 5 crystals. It actually gives 5 crystals, not 10.