Venetian Cristallo Glass

Timeline

1. 1581–1582Murano · VeniceBy around 1581 some twenty-eight glass furnaces were operating on Murano; cristallo products ranged from goblets and vessels to decorative pieces, forming the core category of the island's export trade.
2. 1583–1587Venice · VenetoCristallo used quartz sand or river pebbles as the silica source, plant-ash alkali from the Mediterranean coast as flux, and added manganese dioxide as a decolorizer to eliminate the yellow-green tint caused by iron impurities; the recipe was strictly kept secret by the Republic.
3. 1585–1590Europe · EuropeIn the 1580s monarchs, papal envoys, and merchants frequently visited Murano to order cristallo glass; products shipped through the port of Venice to the Spanish Indies, the French court, and German markets, becoming standard objects of high-end European social etiquette.