Whats this rock called?

i think it's ither sedimitary, or man-made.

Picture of Whats this rock called?
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Re-design7 years ago
Hey, that's Robert Rock. What's he doing at your place.  His ancestry is in fact sedimentary.
That's not Bob. It's his Australian cousin Mick. Yes he is sedimentary.
Gee he's looking old though.
.  With the quality of that pic, I'm not sure how y'all determined that that's a sedimentary rock. Looks kinda igneous to me. <shrug>
Yes, he does look a bit igneous, hard to tell from this pick.
Bob and Mick are almost twins.  The family ties must be pretty tight.