Christine is right. I can only think it was clear rolled in blue bits then the whole thing somehow rolled with these 'stripes' of goldy/ochre colour. The stripes are on the surface and it isn't cased in clear, leaving this lovely bubbled texture. I can't think of where it may have come from. Will Shakspeare (It's not his I am sure) uses that blue technique on some recent pieces as I'm sure many makers have done now and in the past. What's nice is the gold on top. I think it's not new actually. Not that I'd know, but the shape is reminiscent of shapes done in the 70's -80's to me, more organic forms.
m