1) Mountain of Veneto
Found on
https://www.crosswordclues.com/clue/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 ...
Found on
http://en.wikipedia.org/wiki/Cristallo
[mountain] Cristallo is a mountain group 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. ==Peaks== The highest peaks of the Cristallo group are Monte Cristallo (3,221 m), Piz Popena (3,153 m), Cima di Mezzo ...
Found on
http://en.wikipedia.org/wiki/Cristallo_(mountain)
A Venetian soda glass developed in the 15thC in which the soda element comes from the ashes of barilla, a saltwater marsh plant. This, together with the decolorising agent manganese oxide, produces a colourless glass that resembles rock crystal. Its fragility means that it can only take surface decoration such as ENAMELLING, TRAILING and GILDING, a …...
Found on
http://www.encyclo.co.uk/visitor-contributions.php
Thin, fragile Venetian soda glass c.15th Century, in which the addition of Manganese gave a clear, translucent rock crystal effect
Found on
http://www.great-glass.co.uk/glass%20notes/glossa-e.htm
No exact match found.
