[meteorite-list] etching?

From: John Gwilliam <jkg_at_meteoritecentral.com>
Date: Thu Apr 22 10:27:50 2004
Message-ID: <4.2.0.58.20031118082952.009b4920_at_mail.theriver.com>

Are you perhaps referring to "water glass" - a product that was used to
coat eggs to extend preservation?

John

At 03:23 PM 11/17/03 -0700, Tom aka James Knudson wrote:
>Hello everyone, Has anyone ever tried (or even heard of ) Liquid Glass on
>a meteorite slice?
>Thanks, Tom
>Peregrineflier <><
>Yea, that's right,
>The proudest member of the IMCA # 6168
>>----- Original Message -----
>>From: <mailto:skyrox_at_hotmail.com>harlan trammell
>>To: <mailto:castlewh1_at_yahoo.com>castlewh1@yahoo.com ;
>><mailto:meteorite-list_at_meteoritecentral.com>meteorite-list@meteoritecentra
>>l.com
>>Sent: Monday, November 17, 2003 3:17 PM
>>Subject: Re: [meteorite-list] etching?
>>
>>very interesting- if you polish a skyrock with a soft lap , the pattern
>>is often visible
>>
>> >From: william anderson
>> >To:
>> <mailto:meteorite-list_at_meteoritecentral.com>meteorite-list@meteoritecentr
>> al.com
>> >Subject: [meteorite-list] etching?
>> >Date: Mon, 17 Nov 2003 05:08:28 -0800 (PST)
>> >
>> >Just had a bizarre thought that I have no answer to.
>> >Has anyone ever tried bringing out the widmanstatten
>> >pattern with a chemical free etch? I was remembering
>> >a fellow who liked to "frost" the busts of coins using
>> >a scaled down sandblasting outfit. He would mask the
>> >unetched areas with rubber cement. However if the
>> >taenite and kamacite have different hardnesses, the
>> >etch would be differential, so the pattern would
>> >emerge, and would happen without much fuss? Who knows
>> >what it would look like, but the visual desirability
>> >of an chemical etch might just be borne of no other
>> >alternatives. At the least there would be no great
>> >need for neutralizing the chems away. Just a random
>> >thought. Nice day to you all.
>> >Bill Anderson
>> >
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>>
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Received on Tue 18 Nov 2003 10:30:58 AM PST