Glass Message Board
Glass Identification - Post here for all ID requests => Glass => Topic started by: Tigerchips on March 15, 2008, 10:00:42 PM
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Chinese, I'm sure it's not though even though it's modern. :)
It's very heavy and the crackle is very fine and the quality seems good. It's a cracking good vase Gromit!
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AAAArgh - I'm getting confused this looks like a mix of crackle and peluguso(?) Would people say that this is an example of 'sloppy' modern mass production methods? The whole bubble thing confuses me - I've identified, Biot, Nazing, Murano, Whitefriars etc etc etc and the size/density of bubble inclusions seems to vary so much. Can anyone suggest some reference source on glass production that will help me understand the different processes a bit more. ooops sorry Frank, forgot to mention Scottish glass in my list! cheers all, steph (avid but ignorant learner)
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Very little published on such techniques.
Craquelle is achieved by dipping the piece in water and only experience and technique prevents it from shattering completely, or even exploding. Crackle is a common English term for it.
Bubbles can be introduced mechanically by pricking the glass with needles, either by hand or in a mould. There is a picture of such a mould in one of the archive postings. Or by sprinkling powder of any substance that vaporises when the second gather is taken - giving random bubbles. The Ysart's used charcoal which did not completely vaporise and small black particles can be found in the glass. The bubble distribution is controlled in hand-blown by the use of dip-moulds before the second gather and later manipulation. Some controlled application of the vaporisable material could also be used.
Lots of variations on the above.
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This is all crackle, no bubbles, and the crackle is inside the glass, must be cased then?
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I think it was Carder who used to put ash branches in the batch to make bubbles.
Could it be overshot and cased maybe?
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It's smooth on the surface so I don't think it's overshot. :)
100% crackle.
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Karcag glass i believe...
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Yes I thought so as soon as I opened the thread - I didn't realise the thread was so old :)
very pretty.
m
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another way to achieve something like is to roll in a baking soda solution, which gives a fake scavo effect and then reheat just a little and then encase in clear. that creates lots of small irregular bubbles.
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another way to achieve something like is to roll in a baking soda solution, which gives a fake scavo effect and then reheat just a little and then encase in clear. that creates lots of small irregular bubbles.
Or dip in a bucket with Bicarbonate of Soda dissolved in it, before gathering.