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

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 â 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', Ã aspect: 'irrisation (surtout sur fond noir)'.
Dark field illumination et lumiÃre 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
>>
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