Fascinating video, Ivo. Thanks for the link

I remember doing stuff like that myself back in the '70's when my kids were young. Also, I also had a friend at that time who owned a little kiln, and she and her husband used to make hot enamel jewellery!
I guess I would say the cold enamel is as much 'enamel' to me as cold-cast bronze is bronze!
However, I have since that time seen many examples of glass workers using powdered glass to marver in colours to a glass item they were making. I am honoured to have watched made (and subsequently bought

) one of Adam Aaronson's 'Landscape' vases -
http://glassgallery.yobunny.org.uk/albums/userpics/10048/Adam_Vase.jpg - the surface of which is deliberately left slightly textured, with partially melted colours as you can see. Then only last weekend we watched Siddy Langley making a paperweight, which I photographed and have put in my gallery here -
http://glassgallery.yobunny.org.uk/thumbnails.php?album=668 - where the colours are internal, being totally melted into the surface of the weight and then cased in clear glass.
If I had been asked, I would have said that these pieces involved the use of powdered coloured glass. I would never in a million years have considered them to be 'enameled', nor the products used in their creation to be 'enamel'!
But then I
am ignorant, and not afraid to admit it!
I'm basically just 'Jo Public' I guess!