Turquoise bird necklace

[AC]

Carved Turquoise Eagle Necklace w/ sterling articulated back

I got this necklace from a friend today. It belonged to her late Mother who was also a friend of mine. It is not marked but seems to be nicely made and in good condition. The weight is almost 53 grams. I have included a tape measure in some of the pictures. The turquoise appears to be hand carved. Since I don’t expect to part with my eagle, I’d like to know more about it. 1) Is the turquoise legit and can a mine be named? [image] [image] [image] [image] [image] [image] 2) Is the style distinct…