Posted by: brian graham Post Reply
01/19/2017, 17:57:06
True bone ash is the source - calcined bone which is finely ground. Potters still use it and this is the source that I use to melt glasses like these. There is a saying with colored glass makers - mixed well is half melted.
One other way to get a color similar to this would be called a "girasol" glass - this is opacified with lead arsenate. I have never melted one of these.