
Remind me not to phrase my sentence as if I actually know what I am talking about in the future. I did a Google search on "Marble statue" and I couldn't find any statues with visible veins, thus my "highly educated" statement.
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Orcs are such skillfull craftsmen that a lack of proper materials and tools couldn't possibly stop them, obviously.
Oh, and here's a http://i119.photobucket.com/albums/o133/Xeth-Ban/Morrowind/Scenic%20Screenshots/ScreenShot375.jpg