In the early medieval period, glassmakers lost access to the soda-rich minerals of the Mediterranean. To adapt, craftsmen in Northern Europe began using potash—made from burning wood like beech or fern—creating what is known as "forest glass" ( Waldglas ). This glass often had a distinct greenish or amber tint due to iron impurities in the sand, giving medieval vessels a rugged, organic aesthetic compared to the clear glass of antiquity. The Rise of Stained Glass
Detail the of how they made specific colors Provide a shorter, bulleted summary for a presentation Medieval Glass
The story of medieval glass is a journey from the remnants of Roman perfection to a unique, earthy brilliance that defined the era’s architecture and daily life. While the art form nearly vanished after the fall of Rome, it evolved into one of the Middle Ages' most enduring legacies: the stained-glass windows of the great cathedrals. The Shift in Craft In the early medieval period, glassmakers lost access