The term Forest glass or the German name Waldglas is given to late Medieval glass produced in North-Western Europe from about 1000-1700 AD using wood ash and sand as the main raw materials and made in factories known as glass-houses in forest areas. It is characterised by a variety of greenish-yellow colours, the earlier products being often of crude design and poor quality, and was used mainly for everyday vessels and increasingly for ecclesiastical stained glass windows. Its composition and manufacture contrast sharply with Roman and pre-Roman glass making centred around the Mediterranean and contemporaneous Islamic glass making to the east.
Read more about Forest Glass: History, Glassmaking, The Chemistry of ‘forest Glass’, Comparative Compostitions, Control of Colour, Operation of The Glass House, Furnace Design, Location of Glass Houses, Topics For Further Work
Famous quotes containing the words forest and/or glass:
“It is as when a migrating army of mice girdles a forest of pines. The chopper fells trees from the same motive that the mouse gnaws them,—to get his living. You tell me that he has a more interesting family than the mouse. That is as it happens.”
—Henry David Thoreau (1817–1862)
“My glass shall not persuade me I am old
So long as youth and thou are of one date,
But when in thee time’s furrows I behold,
Then look I death my days should expiate.”
—William Shakespeare (1564–1616)