This is a trade secret to the glass color manufacturers.
https://www.elev8glassgallery.com/blog/glass-terms-techniques-tools-in-the-industry/#fluorescentlighttransitionalglass
This is a trade secret to the glass color manufacturers.
https://www.elev8glassgallery.com/blog/glass-terms-techniques-tools-in-the-industry/#fluorescentlighttransitionalglass