10 hours ago, andiesenji said:
The AH cup is not jadeite, it is one of the "cased color" pieces made by Hocking in the 1940s and '50s.
This is a Fire King "D-handle" Jadeite mug ca. 1935. It glows under black light because it was made when they still used uranium.
At one time I had a bunch of these. Sold the last one about 5 years ago.
Wow - interesting. So everyone selling this stuff as "jadeite" is lying. good to know, but not that surprising!
Fortunately, when I say more expensive, we're not talking expensive really. Just moreso than the white cup.
Also, @andiesenji what I really want are those restaurant diner mugs.