Hi Rob,
After absorbing most of the classification information that Jeff Grossman was so kind in providing to the list last Tuesday, I have found some inconsistencies in the information that you quoted on your webpage regarding NWA 2653. In the first case you quoted a source that grouped 3133/1839/2653 together as paired. However, in the MetBull #89 Preview, NWA 1839 is officially classified as an L7, not an ungrouped PAC. Last time I looked at the NAU website this meteorite was also listed as an L7 (it is curiously missing from their site today). Also, the implication was made that the O-isotope plot was the reason for the primitive achondrite designation rather than an L7 designation, but I don't think the O-isotopes have anything to do with this decision. Finally, your primitive achondrite NWA 2653 could not possibly be a CV7 as Jeff succinctly explained to us, these terms are mutually exclusive - primitive achondrites contain a melt component, at which point the Van Schmus-Wood scheme is no longer valid.
David (still in a learning mode)
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