[meteorite-list] An interesting (?) Chinese tektite

From: Norm Lehrman <nlehrman_at_meteoritecentral.com>
Date: Fri Mar 10 11:55:20 2006
Message-ID: <20060310165501.20329.qmail_at_web81001.mail.mud.yahoo.com>

Dirk,

As I wrote earlier, I have seen this patina on old
ghost town bottles that have been through a fire.
There IS some connection. Perhaps the common ground
between our comments is that wood ash is strongly
alkaline. I remember my grandma leaching ashes to get
lye to make soap. Perhaps the accelerated chemical
reactions produced by heat combined with the alkaline
ash is the key--- Whatever the case, there is an
empirical connection with fire.

Norm
http://tektitesource.com

--- drtanuki <drtanuki_at_yahoo.com> wrote:

> Mark,
> Save your time. As I stated earlier this is due
> to
> a chemical reaction by perhaps a natural process
> (alkaline salts) or a man caused chemical process.
> The devitrification process (a weathering process)
> is
> similar that you see on old glass bottles that have
> been buried or in alkaline salt environments and
> nothing to do with heat. Please do a google search
> for more details. Best, Dirk
>
> --- MARK BOSTICK <thebigcollector_at_msn.com> wrote:
>
> > Thanks for your comments Dirk, Kevin and Norm,
> >
> > Norms comments: "The coloration is a surface
> patina
> > like Carnival Glass." is
> > better then mine previous.
> >
> > I imagine it is a man influenced feature. Perhaps
> I
> > will burn a couple
> > tektites to see what results that creates and try
> > other ways to create the
> > patina....with some of my lower grade tektites of
> > course.
> >
> > Clear Skies,
> > Mark
> > www.meteoritearticles.com
> >
> >
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Received on Fri 10 Mar 2006 11:55:01 AM PST