What Kind of Turquoise is this?

Hi, I am having trouble finding out about this necklace. It has a huge turquoise stone, that seems a little odd to me. There is a lot of white in it and green and pale blue blotches. Is this stabilized or something? Any information would be very helpful. Thanks

<img src=/uploads/db1846/original/1X/b85fae797d3c63c469c3178ea5fe41e71dfceb2f.jpg">

<img src=/uploads/db1846/original/1X/78e97acf2acfd2785ff206383c014a68d18d19aa.jpg">

I believe it is a piece of Fox Turquoise, possibly natural, just low grade. Thanks for sharing.

Thank you for the information. It is helpful.