Glass Mosaic Tile Collection Video from Trend

The most highly refined manufacturing in today's world still relies on an ancient technique, the union of pure gold with glass.

Gold mosaic
The possibility of making glass stick to thin sheets of gold leaf was discovered in Roman times.

The widespread use of mosaic tesserae of this kind for gold backgrounds dates back to the fourth century A.D., first in Spain and Greece and then in the whole Mediterranean area.

Over the centuries, its charm has been almost the very emblem of mosaics, so that at times it was even viewed as the mosaic par excellence.

But how is gold mosaic made?
First of all it is made of real 24-carat gold. It must be very pure gold to withstand a beating and firing process which achieves incredible results: with one cubic centimetre of gold, as many as six square metres or even more of beaten gold can be obtained, with thicknesses of as little as 0.15 thousandths of a millimetre.

The gold leaf is then compressed, as in a sandwich, between a base of plate glass and a very fine sheet of transparent glass, neutral or coloured, which protects its surface and gives special hues to the gold. Fire bonds the three components in a single block that cannot crack or break, thanks to a careful and strict study of the stress coefficients of glass and gold.

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