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

[Norm Lehrman]

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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