Soda-lime glassrod produced by Creation is Messe (CiM), Byzantium Ltd Run is a purple moonstone without any bluish tint, it leans more towards the reddish purple family.
They are compatible with all Effetre, Vetrofond and Precision 104 colours.
Glass for flamework: beads and spun glass.
Coefficient of expansion (COE) 104
Annealing temperature: 470°C (878°F)