color changing glass

[DazedandConfused]

how does a color changing glass piece get it's color. the one i bought a couple months ago is still pretty clear. ive never boughten one that was clear to start with, but what they showed it as looking eventually looked really cool.so i bought it.

[BobBong]

Mercury i believe... blown with the glass.

[thcbongman]

You have to let resin build up. I'm not a glass blower so I can't explain how it's done, but if you look at it under a bright light under a black surface, you could see what colors it will change to.

[DazedandConfused]

cool, ill just start smoking more out of it than my other stuff.

[BobBong]

"ALL glass pipes are fumed with Silver or Gold
this is how you get the color-changing appearance, however some glass artists will "fume too heavy" for the colors to change
It requires a skilled lampworker to apply to proper amount of silver or gold to make the piece "color-changing" without becoming opaque or milky, but instead producing a iridescent array of colors including blues, greens, pinkish-reds, purple, orange and more."

- from http://www.iblowglass.com/

Basically when the glass is blown, it's fumed with certain materials like Silver,Gold or Mecury. Different materials...give different colouring.