This approach is easily identified by an exterior layer of colourless glass and dense layers of colourful glass within it as if a large drop of colour had been trapped inside the translucent glass.
This is accomplished by melting various layers of glass together and putting them in melted coloured glass pots repeatedly. This approach is easily identified by an exterior layer of colourless glass and dense layers of colourful glass within it as if a large drop of colour had been trapped inside the translucent glass.