Rubik’s Cube Made of Stone Posted by: Andrew December 17, 2009 in Arts & Design, Gadgets Leave a comment And you thought your Rubik’s Cube was hard. I told you, I always come in first place, even if we’re ranking by Rubik’s cube hardness… Oh, you were referring to the difficulty? Well then. Carry on. Link [via] email design hard puzzle rock Rubik's rubiks cube 2009-12-17 Andrew Share ! tweet