Slag
glass, so named because it was made by adding a proportion of
‘slag’ from iron foundries, was widely manufactured
in the 19th century. Slag glass is opaque pressed glass with white
or cream streaks. Originally called ‘marble’, it wasn’t
until recently that it began to be called slag glass.
Slag
glass was commonly found in purple and, more rarely, in blue,
green or brown. In the 1880s and 90s, a large amount was made
in the North East of England by well known pressed glass manufacturers
like Sowerby and Greeners.
In
the United States, slag glass is still produced today by companies
such as Imperial and Westmoreland.
For
more information on Slag Glass visit http://www.mindspring.com/~reyne/slag.html
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