Here are some more recent pictures
Taken with and without flash - you can see from the base all the way through the glass is really a slightly glowing orange colour.
I show the green and white bowl, there is no blue in it at all that is as said the opalescence. The red and white bowl is same.
Will try and get a UV test - I have opalescent items but they are not made from a vaguely glowing pale orange cased body
Blue haze at edges with orange base showing, flash
Base shown under strong light, no flash
The vase under very strong light angled to show how it can look as if the casing is clear