What is "cristallo"

Cristallo is a glass which is totally clear (like rock crystal), without the slight yellow or greenish color originating from iron oxide impurities. This effect is achieved through small additions of manganese oxide. Often Cristallo has a low lime content which makes it prone to glass corrosion (otherwise known as glass disease).

The invention of Cristallo glass is attributed to Angelo Barovier around 1450.

Cristallo is a mountain in the Italian Dolomites, northeast of Cortina d'Ampezzo, in the province of Belluno, Veneto, northern Italy. It is a long, indented ridge with four summits higher than 3,000 metres.