The terms "same parent body," and "same type," and "pairing" all have quite different meanings, and each has its own degree of uncertainty.
Sterling K. Webb ---------------------------------------------
just for the record to avoid any possible confusion I am not claiming that nwa 3133 and 1839 are paired because of the oxygen isotopse data. Before Adam and my argument ont he list some time ago the NAU web site listed nwa 1839 and 3133 as paired stones. Adam has said something about the isotopse data for one of the stones suggests a diffrent parent body so the stones CANT be paired. It is not my argument that stones comming fromt he same parent body are paired - rather that the all of the oxygen isotopse data I have seen thus far does NOT argue against a pairing.
Your post was spot on otherwise - i just wanted to make sure there was no misunderstanding with anything I said.
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