Stained glass in Gothic architecture is colored using which materials?

Stained glass in Gothic architecture is colored using which materials?

• A. Plant dyes
• B. Sand and lime
• C. Metal oxides (cobalt, copper)
• D. Wood ash

Answer: (C)

Color in Gothic stained glass comes from metal oxides added to the glass melt or used in enamel paints. These inorganic pigments become part of the glass itself, so the windows retain rich, durable hues as light passes through. Cobalt oxide gives a deep blue, copper oxides yield greens (and turquoise), and manganese can produce purples or browns; in some cases, gold chloride can create ruby red glass. Plant dyes wouldn’t survive the high firing temperatures or integrate with the glass matrix, and sand and lime are simply the base materials of glass, not colorants. Wood ash also doesn’t provide stable, vivid colors. So the coloring relies on metal oxides.

Color in Gothic stained glass comes from metal oxides added to the glass melt or used in enamel paints. These inorganic pigments become part of the glass itself, so the windows retain rich, durable hues as light passes through. Cobalt oxide gives a deep blue, copper oxides yield greens (and turquoise), and manganese can produce purples or browns; in some cases, gold chloride can create ruby red glass. Plant dyes wouldn’t survive the high firing temperatures or integrate with the glass matrix, and sand and lime are simply the base materials of glass, not colorants. Wood ash also doesn’t provide stable, vivid colors. So the coloring relies on metal oxides.