When visiting Wikipedia about glass fusing I checked out the page on glass colors. That was totally fascinating so I’m sharing it with you guys. I’ve always known that it takes various chemicals and metals to achieve colorations in glass but they also get into the inclusions and ions and then the refractors and separators. Then there are the strikers…
Good information and it will help you understand why the glass looks the way it does. Check out the references for more information because I don’t think you can have too much information about glass and it’s properties.