Re: Irrisation? Re: re info on old bottle for M.Cotton

Hello again,

Sorry Robert but the word is irisation. Irisation ( iridescent,
rainbowcolors ) normally is the deformation of the glass into colorfull
layers. I mentioned this word because Micheal Cottons bottle also has layers
caused by deformation of the glass. This word is also mentioned in the
following link http://arheo.f.bg.ac.yu/projekti/jelica/rezime5.html
I hope this also helps Harry.

Kind regards
MaNU


"Robert Woodbury" <[EMAIL PROTECTED]> schreef in bericht
news:[EMAIL PROTECTED]
> I think he means irridation, Harry.
>
> "Pristis" <[EMAIL PROTECTED]> wrote in message
> news:[EMAIL PROTECTED]
> > Hello, MaNu. . .
> >
> > I am not familiar with the term "irrisation" nor is it in my (American)
> > dictionary.  Can you tell us more about this word and how it's used in
> your
> > part of the world.
> >
> > -------Harry Pristis
> >
> > <><><><><><><><
> > >"MaNu" <[EMAIL PROTECTED]> wrote in message
> > >news:[EMAIL PROTECTED]
> > >> Hello Michael,
> > >> in my opinion the thick encrusted layer should not be removed. This
is
> > >just
> > >> the deformation of the glass, so called irrisation, this occurs on
> bottles
> > >> that have been burried in the ground or have been exposed to sea
water.
> > >The
> > >> glass is affected because of a chemical reaction between the salty
sea
> > >water
> > >> and the minerals in the glass. The irrisation gives the bottle
> something
> > >> extra and also has a historic value. It is quite common that this
> > >irrisation
> > >> will (can) flake off. You will have to handle the bottle with extreme
> care
> > >> and do not expose it to severe temperature changes.
> > >>
> > >> All the best,
> > >> MaNu
> > >>
> > >>
> > >
> > >Thank you for your reply. I also posted the same query on the
> > >antique-bottles.net forum and someone there advised me to consult an
> > >archaeological society for advice. I have since emailed such a society
in
> > >Portsmouth and I am waiting for a reply.
> > >
> > >Thank you once again.
> > >
> > >--
> > >Michael Cotton
> >
>
>