Mixing Lab
Every concept page shows one colorant at a time. Real glass often holds several: pick up to four colorants, set their concentrations, and watch the combined absorption curve and the transmitted color respond. The recipes load preset combinations.
recipes
dissolved ions
metal colloids
band-gap crystals
in the melt
thickness ×1.0
Cobalt, chromium, iron, copper and silver curves are measured (marked ●); the rest are illustrative, drawn from the shape of published spectra. The swatch integrates them against the CIE 1931 observer under daylight. Mixing follows Beer–Lambert: optical densities add, scaled by concentration and thickness. Real melts also involve redox interactions between colorants that this model ignores.