Glass Discussion & Research. NO IDENTIFICATION REQUESTS here please. > British & Irish Glass

Puzzle 2 - who made me?

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chopin-liszt:
The colours you are describing are silver chloride effects (or perhaps silver nitrate) the'ts what is giving you the yellows and silvery mirrory bluey bits. Beautifully controlled!
My guts think Will Shapespeare too.
But there's not much that is beyond Allister Malcolm either; the base looks more Shaks than Malcolm though.

flying free:
Yes, Greg was right :)
Sue thanks for the information - it's a beautifully 'perfect' piece of glass.

m

chopin-liszt:
The silver ions reacting with the hot glass give you the yellow colour. The blues and mirrory bits come from silver itself,  ionic, not reacted. The blues from silver molecules/particles suspended in the metal (they form a gas in the heat) the mirrory bits from silver that has deposited on the suface.

The heat first melts the crystals when they are applied to the hot surface of the metal, but it will depend on the exact temperature at each point in the vessel, what happens chemically after that.

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