[meteorite-list] Re: etching- water glass and 'moon rocks'

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From: Howard Wu <freewu2000_at_meteoritecentral.com>
Date: Thu Apr 22 10:27:51 2004
Message-ID: <20031118173843.38444.qmail_at_web60005.mail.yahoo.com>

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Water glass is a aqueous solution of sodium silicate and is very alkaline (high ph.) They also use this in a toy product "moon rocks" where you add tablets of various metal salts that then grow into stalagmite like forms.

Howard Wu

John Gwilliam <jkg_at_theriver.com> wrote:
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: harlan trammell
>>To: castlewh1_at_yahoo.com ;
>>meteorite-list_at_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:
>> meteorite-list_at_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
>> >
>> >__________________________________
>> >Do you Yahoo!?
>> >Protect your identity with Yahoo! Mail AddressGuard
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>> >
>> >______________________________________________
>> >Meteorite-list mailing list
>> >Meteorite-list_at_meteoritecentral.com
>> >http://www.pairlist.net/mailman/listinfo/meteorite-list
>>
>>
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<DIV>
<DIV>Water glass is a aqueous solution of sodium silicate and is very alkaline (high ph.) They also use this in a toy product "moon rocks" where you add tablets of various metal salts that then grow into stalagmite like forms.</DIV>
<DIV> </DIV>
<DIV>Howard Wu John Gwilliam <jkg_at_theriver.com> wrote:</DIV>
<BLOCKQUOTE class=replbq style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px solid">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: <?xml:namespace prefix = mailto /><mailto:skyrox_at_hotmail.com>harlan trammell >>To: <mailto:castlewh1@yahoo.com>castlewh1@yahoo.com ; >><mailto:meteorite-list@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 >> > >> >__________________________________ >> >Do you Yahoo!? >> >Protect your identity with Yahoo! Mail AddressGuard >> >http://antispam.yahoo.com/whatsnewfree >> > >> >______________________________________________ >> >Meteorite-list mailing list >> >Meteorite-list_at_meteoritecentral.com >> >http://www.pairlist.net/mailman/listinfo/meteorite-list >> >> >>---------- >><HTTP: 2746??PS="" 8HMAENUS g.msn.com>Customize MSN Messenger with >>backgrounds, emoticons and more.
 >>______________________________________________ Meteorite-list mailing >>list Meteorite-list_at_meteoritecentral.com >>http://www.pairlist.net/mailman/listinfo/meteorite-list ______________________________________________ Meteorite-list mailing list Meteorite-list@meteoritecentral.com http://www.pairlist.net/mailman/listinfo/meteorite-list</BLOCKQUOTE></mailto:meteorite-list@meteoritecentral.com></mailto:meteorite-list@meteoritecentral.com></mailto:castlewh1@yahoo.com></mailto:skyrox@hotmail.com></DIV><hr size=1>Want to chat instantly with your online friends? <a href="http://uk.rd.yahoo.com/mail/tagline_messenger/*http://uk.messenger.yahoo.com/">Get the FREE Yahoo!
Messenger</a>
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Received on Tue 18 Nov 2003 12:38:43 PM PST

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