How do color changing glass pipes work

I was wondering how color changing glass worked. I've used my pipe fairly often over the year and a half that Ive had it and now green.

Grasscity ForumspostsOct 2009How do glass pipes change color? Grasscity ForumspostsJul 2009How can you tell if a glass pipe will change colors. The first glass pipe i bought was a color changer and i thought it was pretty sweet looking even before . First Chameleon GlasspostsDec 2009Isopropyl VS.

Change Color GlasspostsSep 2008Color changing pipes. Although it seems like it's pretty tough to buy a pipe these days that's not color changing, it wasn't until around the 1980's when . Is it some kind of chemical reaction with the smoke or does heat make the glass change colour? Glass tobacco pipes were developed to provide a pure smoking experience by. May 20- Regarding color-changing pipes, what exactly causes the change? I also did a search for what they put in color changing glass, but all I found.

Fumed glass pieces are some of the most beautiful glass pipes because of. Color Changing Glass - The Art of Fuming and Hand Blown Fumed Glass Pipes.

As the pipe darkens with use, the colors (many barely visible) become darker and. Color changing glass is used in a variety of products such as glass vases, .