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post #2 of (permalink) Old 01-10-2013, 05:47 AM
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Join Date: Jan 2012
Location: Oakland, CA
Posts: 2,318
I thought the pic looked really odd until I read your post. makes sense, a lot of times old construction rubble is used as riprap to prevent erosion/build jetties. So, a lot of building stuff ends up in the ocean, and some will get broken/weathered loose, tumble around a bit, and show up somewhere else. (or it could've just washed down a river, been dumped at sea, whatever...)

Since you seem to have an idea of what it was intended for, any idea of what it's composition is? I'm not having much luck guessing at it's composition from the pics. do you think it's cut/shaped stone, or something akin to brick, terra-cotta, cinderblock, concrete/cement?

Maybe if you could get a macro/close up of the piece itself, so we could take a guess at it's composition/qualities?
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