Piece of Marble Rock   Piece of Marble Rock (Decorations)
It seems just perfect to try and create something out of it with a sharp obsidian knife
Weight: 10.00 oz.
Dropped By:
Notes: If you use an Obsidian Knife on it, you will either break it or carve one of the following:

See a research article by Tibia-Stats here to discover what the chances for getting each form of the marble statues are.
See also: Piece of Marble Rock/Sculpting Statistics

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One can be obtained through the Jack to the Future Quest.
You can earn the achievement Marblelous by sculpting a Beautiful Marble Statue and the achievement Marble Madness by sculpting five Beautiful Marble Statues.
Spoiler ends here.