Nakhlites are much more fragile than Shergottites. Maybe this has something to do with it. They may tend to weather away faster. I have never held a large piece of Chassigny so I can not say from experience if it is as fragile as Nakhla.
Randy
>From: "Jamie Ekholm" <[EMAIL PROTECTED]>
>To: <[EMAIL PROTECTED]>
>Subject: [meteorite-list] SNCs
>Date: Sat, 16 Feb 2002 11:29:43 -0600
>
>I am just curious. Does anyone know why it seems Shergottites are more common than Nakhlites or Chassignites? It just seems that if a new Martian meteorite is found, you can almost bet it will be a Shergottite. Is it just that they had a better chance of surviving the journey from impact on mars to the fall through our atmosphere?
>
>Jamie
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