Bob Leatherbarrow's crackle technique

[flame n fuse]

Hi, I've been playing around with this today. The tutorial is very well written. Attached is a pic of my first attempt, I used pumpkin yellow and deep royal blue powders and tekta clear. The blue seems to have mostly vanished, but I'm still pretty pleased with this. I can see lots of opportunities for working with powders in related ways.
(I'm resizing it in photobucket, but the resize doesn't seem to carry through.

[Moira HFG]

I like that very much. Wonderful subtle grades of colour and shape going on in it. It calls to mind leaves, and dragonfly wings!

One of the things I love about glass is that you can mix colours that in paint would give you muddy grey; whereas in glass you get something much more interesting!

[GaysieMay]

What a lovely effect, will you cut this and slump it?

[flame n fuse]

The actual piece is only about 16 cm wide so I probably will just keep it as a sample. I think that next I will do some test pieces with different colour combos before doing a bigger piece for slumping. The final thickness is about 4.5 mm, rather than the usual 6mm, so will be interesting to see how it slumps, but it'll make a more delicate bowl than usual. It's quite rough on the base and I might cut this piece in half and play with fire-polishing etc.