This is standard colourless window glass, available in varying thicknesses. It is
made by floating molten glass on to molten tin to get an ultra-
Roundels, Lenses and Bevels
Individual 3D glass shapes are available to add interest and depth into stained glass. Victorian roundels are particularly attractive as they sometimes contain two colours swirled together and distort light to a greater degree because they are thicker in the centre.
This is glass made in the traditional way where molten glass is blown into a cylinder
and then flattened to form a sheet. Its beauty lies in its exceptional clarity and
This is the type of glass commonly seen in domestic Victorian and Edwardian stained glass windows. It is also somewhat confusingly called “cathedral glass”. It is available from smooth to heavily textured and in a wide range of colours. These textured glasses are often used to distort the outside view to provide more privacy, for example in hallway windows.
Other speciality machine-
An interesting array of clear machine-
Streaky, Opal and Wispy
Streaky glass contains two or more colours and is available in transparent or opal
sheets. Opal glass has a milky appearance and can be used to obscure the background.
A mixture of clear and opal is often referred to as wispy glass. Used discriminately,
opal and streaky glasses can be used to great effect in stained glass. They can
be either mouth-