Original Message:   Re: Phosphate?

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. Copyright 2024 All rights reserved by Bead Collector Network and its users

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