then I apologise m for misquoting you

Anne - thanks for advising re the Opaline de Foire, although regret I can't recall seeing a picture of this one.
Firstly, I admit to knowing less than either of these two ladies about what may or may not be called opaline, but for me the blindingly obvious problem here is that we seem to be widening the scope of what may legitimately be described as opaline - and there is the real danger now that we have strayed from the recipe devised by Baccarat c. 1820s - upon which the word opalin rests.
The parameters we are setting provide for just about every kind of translucent/opaque coloured glass, cased or otherwise, with or without a glow, to be called opaline, and without chemical testing how do we know if a given piece does or doesn't contain ashes of calcined bones as the opacifier.
How do we maintain a standard of description with which to say something is opaline, or it is not - it seems impossible from our lack of success so far, and the more I read here the more it appears that just about anything and everything can in some way be classed as opaline.
An orange is an orange and an apple is an apple because of specific properties they possess - definable and recognizable, and an apple will never be an orange and vice versa.
Of course we know what gorge de pigeion and bulle de savon look like, so really don't need any more pix of those high end pieces.

there is no problem with calling any piece of coloured glass opaline if that's what really turns us on, but to spend more time discussing something where we know we cannot find an agreed concise descriptive terminology, does seem like a dead end, and we'd be better of talking about other issues. Remember the last time we discussed opaline it seem to go on for ever, and we didn't reach a conclusion then.
Regret I can't put a date on the scents - although seem to recall that turquoise was one of the colours I'd seen in relation to opaline.