Copyright Sheffield Galleries & Museums Trust
Examples of glass slag from Bolsterstone
Copyright Sheffield Galleries & Museums Trust
Examples of glass slag from Bolsterstone
Dimensions : Length 2.4-7cm.
Site name : Bolsterstone
Site type : Industrial production site
Time period : Post-Medieval
Material : Glass; Slag
Object type : Manufacturing waste
Museum number : 1996.149.2
A lot of glass and glass waste was found at Bolsterstone. Waste includes slag and unwanted glass. Glass is discarded or reused if it is not up to standard.
Some is likely to be cullet. This is the name given to pieces of old broken glass used in the making of new fresh glass. Glass used as cullet may not have been made at the site.
A range of glass colours was available. Colours were created by adding other materials to the glass crucible. For example, cobalt was used to produce blue glass.
Bibliography :
Ashurst, D. , 1987
Glossary:
Crucible
Cullet
Electron probe microanalysis
Slag
Related objects
Examples of glass from Bolsterstone
Slag from Rockley Smithies
Lead offcuts from Brough
Five bottles with brand names from Catcliffe
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