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

What I meant was iridescent, Harry, or what we call sick glass.
The cloudiness that appears when the glass is subject to chemicals in the
ground or water that gives it a hazy, milky color.
"Pristis" <[EMAIL PROTECTED]> wrote in message
news:[EMAIL PROTECTED]
> Hello, Robert . . .
>
> I don't find "irridation" in the on-line dictionary.  Where did you find
that
> word?
>
> "Irrisation" seems to be a French word (though I don't find it in FR.
> dictionaries on-line).  From the usage, it appears to mean something close
to
> "iridescence" or "opalescence" or perhaps "chatoyancy."  In French, I see
> "irrisation" used in describing Roman glass and opal.
>
> MaNu appears to have a good command of English -- Hollanders are
justifiably
> proud of their multi-lingual skills.
>
> <<Very beautiful Roman green vase
> Description: Very beautiful irrisation , a masterpiece of Roman Glass Art.
> Origin: Found in Syria 1 - 2 century AD.
> Condition: Complete intact, no restorations.
> Provenance: old Belgian collection.
> Height: 3.1 inch. (8 cm)
> Item number: H465>>
>
> And another example:  <<Opale
> Opale noble Australie: Inclusion de type: 'coloration', de nature:
> '"micro-billes" de Silice', à aspect: 'irrisation (surtout sur fond
noir)'.
> Dark field illumination et lumière incidente 20X>>
>
> It's good to learn these things.
>
> ------Harry Pristis
>
> <><><><><><><><><
>
> > "Robert Woodbury" [EMAIL PROTECTED]
> >Date: 10/28/2003 7:31 AM Eastern Standard Time
> >Message-id: <[EMAIL PROTECTED]> writes:
> >
> >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
> >>
> >
> >
> >
> >
> >
> >
> >
> >
>
>