Ya, it was the one at RM. The problem is that the skeleton is 1+ inches thick on one end, and tapers to over 3 inches thick on the other. It also has all sorts of stuff (rocks, mollusks, etc) within it and it isn't just the old skeleton.
I'm going to try scoring it on both sides with a fine dremel blade, and then use your trick in an attempt to split it.
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Marc
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