Topic: Lots of tiny bubble producing cloudiness

[chriscooper]

Glad I waited for the full picture now 'cos I was about to say that aint no Walrus it's a turkey :pb:

Chris :sun:

[Frank]

Probably just rolled the coloured glass in crushed charcoal, or similar, then cased. Heat vapourises the charcoal... bubble heaven.

[wolkenreb]

So is that how they make the bigger bubbles but with bigger bits of charcoal?

[stew2u2]

no they use a sharp point the deeper they push it into the molten glass the bigger the bubble then it is cased again and they look like bubbles

[Lustrousstone]

We're talking two sorts of bubbles now. Very regular "arranged" bubbles of any size can be made with a tool. Completely random bubbles are made using a powdered "something" mixed into the glass that either vaporises with heat or reacts when heated to produce a gas. The "something", the size of the something powder and the degree of mixing depend on the effect you want to achieve. Fairly regular bubbles in a pattern can be created by laying down a powder pattern on the marver and then casing it in hot glass, where again a gas forms to create bubbles.

[stew2u2]

wondered how some weights had different colour bubbles could it be different colour chemicals, thinking langham glass
thanks
stew

[Lustrousstone]

I would say it's probably a different colour glass frit or chemical such as silver chloride over a "poked" bubble