色・発色
sulfur/selenium glass
Japanese: 硫黄セレン系ガラス
A strain that exhibits yellow to red hues. Reacts with copper-based and lead-based compounds, as well as silver. / Note: Many Bullseye 0xxx/1xxx varieties
A group of compounds that are yellow to red in color. They react with copper-based and lead-based compounds, as well as with silver.
Addendum: Bullseye 0xxx/1xxx (most)
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Sulfur-selenium glass is a type of glass that exhibits yellow to red coloration due to cadmium sulfide (CdS) and cadmium selenide (CdSe). The color is produced by microcrystals precipitated within the glass phase, and the hue is determined by the particle size.
This is a coloring mechanism independent of the redox reactions of transition metals, and it reacts upon contact with copper-based or lead-based glass, as well as silver.
This entry is written in Japanese by Rei Chikaoka and translated for readers outside Japan. If something reads oddly, the original is the source of truth.