glasses with webbing characteristics?
 

Intense black will web when super heated, are there other glasses with that web?
Maybe one of the Reichenbachs?
Just thinking there could be other colors that might web like intense black does.

Some of the metallic blacks will do the same, I am thinking of the black gold (eff) and all the devardi copper and silver black glass. I tried this for hair fine stringer! Hades will web as well, not as much. I have heard Adantium? or one of the other CIM metallics, will do the same but I haven't tried it.

Effetre Petroleum green on Ivory.

Effetre Mosaic green

Opalinos when reduced and partially re-oxidized.

CIM gunmetal, but it will take over your bead if you use too much.

I had forgotten about the opalino. Jim Smircich told me that many years ago. Thanks for the reminder.
I'll have to give the other glass suggestions a try too!