[meteorite-list] cleaning

From: tett <tett_at_meteoritecentral.com>
Date: Thu Apr 22 10:29:57 2004
Message-ID: <001701c37e2e$63187b10$6400a8c0_at_Tettenborn>

Lars,

I am not sure how Eric cleaned these.

I do know that soaking certain stone meteorites in acid (navel jelly)
beautifully cleans the meteorite and removes dark rust stains. I have had
great success with zag and juancheng as well as others. After a navel jelly
soak of an hour they were totally different and really showed the chondrules
and brecciation. I have cleaned pieces over two years ago and they remain
beautiful and stable.

Some meteorites which I have tried to clean did not change at all.

Of course, when you subject these stones to navel jelly you are taking a
risk of totally ruining them. I have never ruined a meteorite but had to
put that caveat in there in case someone does.

Cheers,

tett
Owen Sound, Ontario


----- Original Message -----
From: "Lars Pedersen" <lbp_at_privat.tdcadsl.dk>
To: <meteorite-list_at_meteoritecentral.com>
Sent: Thursday, September 18, 2003 1:18 PM
Subject: [meteorite-list] cleaning


Hi

When I look at the page for NWA869, on The Meteorite Market homepage it
say:
"The slices on this page have been cleaned to show their petrologic
features."

How is this done ?

And the brown color usualy covering the faces of many meteorite-slices, is
that a result of oxidation from the atmosphere on this planet ? (rust?)

Thanks
Lars Pedersen

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Received on Thu 18 Sep 2003 05:46:58 PM PDT