Dear Mark, M, and List;
I second Marks opinion, I have seen this sedimentary cemented rock type scattered for miles. Note that the grains are sorted by size from a stream bed movement. Nice rock pictures.
M. needs a sedimentary geology tutor, any takers?
Dave F.

Mark Miconi wrote:

They look like ordinary sedimentary rocks to me with grains of quartz. I am
no expert but it would take alot to convince me these are anything but Earth
rocks.

Keep trying though, sooner or later your luck is bound to change.

Mark M.
----- Original Message -----
From: M Yousef <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Saturday, January 04, 2003 3:31 AM
Subject: [meteorite-list] highly weathered chondrites


Hiii and happy new year,,,

I have recently found few rocks (over 5 Kg total) that I believe is
chondrite. The bottom half of one of these rocks (~1.5Kg) was (for long
time) inside the hot and wet soil and was highly weathered that it became
very soft and can be crushed very easily. I could separate the chondrules
(that are still very hard, milky, glassy, and well in shape). Whereas the
upper side of the rock is very hard and it seems that the chondrules have
been melt away and left behind semi spherical holes on the surface.

My questions are: do you think that this is a meteorite at all? Why the
surface chondrules melt away whereas they are very hard and stronger than
the bulk material in the bottom half; as if the effect of high temperature
is opposite to the effect of wet soil? Can we estimate the age from this
highly weathered state?

I have also found inside this rock white crystalline pieces of irregular
shape, 3-5 mm wide, any idea what are these?

see nice pictures here:  http://www.alifyaa.com/mf/cndrl/


Sincerely

Mohamed H. Yousef
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