The best I can manage on the instant for Christine.http://glassgallery.yobunny.org.uk/displayimage.php?pos=-5902
Ivo, I understand the technique but would much appreciate a foto reference so that I can picture the result.
Are we talking about 'crackle glass' which is often (mistakenly) called 'ijsglas' (iceglass) in the markets?
Is there an example of 'overshot technique' lurking in the galleries?http://www.glass.co.nz/overshot.htm
Well that clearly is some other kind of beastie! Let's not be distracted by the diverse crystallations of sugars.
I've looked through a dozen googlinks for 'overshot glass' and I'm not seeing anything which really resembles this granular texture.
The Boom product is very smooth to the touch and, of the available techniques I would think that a flux which was burned off in the oven seems the most likely. (The english? examples we have, including hyacinth vases, are rather rougher (almost sandpapery) to the finger)
This surface is really very similar to Rozendaal's Oranjevaas, where the intention was to resemble orangepeel, and that's a good indication of the feel of crystaloc
I'm sure you must have seen as many of these textured items as I have, so what do YOU call them (in Dutch)?
PS. I',m waiting to have the brand's spelling confirmed by an expert, it may be called 'Cristalor' rather than 'Cristaloc'!
PPS I also read through the threads and remaining pics, but can't find anything that really looks/sounds similar enough.