Albino or something else?

[misspigeon]

Hello,
Unfortunately I can't seem to capture this particularly anomaly in pictures but I can describe it and show you a general picture of her (from when she was younger).
I have a 6 1/2 month old [presumable] female IRN. She's pure white with blueish eyes (the sort of blue sometimes seen in albino animals, with almost pink undertones) and the breeder I bought her from said she was an albino. HOWEVER when her feathers catch the sunlight in just the right way they turn a very distinct kinda of iridescent turquoise/mint green. But this can only be seen in certain angles of sunlight. Normally she appears just completely white.

Looking at her now in darker lighting it is possible to very very slightly and minutely occasionally make out some of that turquoise tinge, particularly on her wings and tail, however you wouldn't even notice unless you knew what you were looking for and looked very very closely. For the most part she does look completely white.

Is this normal for albinos or is she something else?

And I'm not going crazy because other people have noticed this too!

~Miss Pigeon