[meteorite-list] Isheyevo - Bright Blue/Green Inclusion

From: Jeff Kuyken <info_at_meteoritecentral.com>
Date: Wed Aug 17 22:03:25 2005
Message-ID: <010501c5a399$0e7af4b0$af578b90_at_mandin4f89ypwu>

>Apatite?

No thanks... just had breakfast! ;-)

But seriously, to answer some of the questions. It's not from cutting nor
from polishing. The endcut was only polished on emery paper and the colour
is solid through the inclusion. In fact I think it actually got a little
larger as I got slightly further into the endcut.

This gorgeous little piece indeed came from Sergey and he has just mentioned
to me that a classifying scientist has I think indeed found blue inclusions
in Isheyevo. Apparently a theory of a impact origin was hypothesized but
given that Isheyevo is unshocked... I don't know. Sergey also mentioned
finding a blue, translucent inclusion in HaH 237. Whatever it is or where it
came from; it's definitely very interesting!

Cheers,

Jeff



----- Original Message -----
From: Pete Pete
To: info_at_meteorites.com.au ; meteorite-list@meteoritecentral.com
Sent: Thursday, August 18, 2005 2:20 AM
Subject: RE: [meteorite-list] Isheyevo - Bright Blue/Green Inclusion


Apatite?



From: "Jeff Kuyken" <info_at_meteorites.com.au>
To: "Meteorite List" <meteorite-list_at_meteoritecentral.com>
Subject: [meteorite-list] Isheyevo - Bright Blue/Green Inclusion
Date: Thu, 18 Aug 2005 00:01:03 +1000

G'day Folks,

Some of you may know how I like to find unusual things in meteorites. As if
they're not unusual enough anyway! ;-)

Anyhow, when checking out a new piece of Isheyevo (CB3) under magnification,
I found one of the WEIRDEST features yet!!! A BRIGHT TEAL-BLUE/GREEN
inclusion. I don't just mean olivine green... I mean BRIGHT!!!

Firstly; this is not an effect of photography nor from preparation. I have
polished the surface from fine blade marks to fairly bright. I did not want
to do it too much though in case I polish out the inclusion. It is quite
small (no more than 2mm diameter) but that is not unusual given that all
features in this meteorite are on a similar scale. Has anyone ever seen
anything like this before or does anyone know what it might be? It really
has me stumped! Pics at the link below:

http://www.meteorites.com.au/features/isheyevo.html

Thanks,

Jeff Kuyken
I.M.C.A. #3085
www.meteorites.com.au

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Received on Wed 17 Aug 2005 10:03:26 PM PDT