Margam Castle, Port Talbot, West Glamorgam. Scientific Examination of the Window Glass
Author(s): Alun Adams, David Dungworth
The scientific examination of fifteen samples of decorated window glass from Margam Castle provides information on glass in use in the 1830s as well as the glass used for a repair in 1905. There are two types of colourless glass: the first made using seaweed ash and the second made using a synthetic soda. The contemporary use of both a seaweed glass and a synthetic soda glass is entirely consistent with the period. the seaweed glass was frequently stained yellow, orange or red using silver. the nature of staining has been investigated: Silver nano-particles imaged and elemental x-ray linescans obtained through the stained layers. In addition the black painted surfaces layers on the colourless glass have also been investigated. The coloured pot metals are all flint glasses with the addition of specific metals to provide the blue, green or purple colour.
- Report Number:
- 22/2010
- Series:
- Research Department Reports
- Pages:
- 29
- Keywords:
- Glass Post Medieval Technology