Vintage navajo native sterling jade mint turquoise? Necklace Stunning jade estat

Vintage estate native American navajo sterling silver and stamped sterling twice and 925 on the clasp, I've been told this is jadeite jade or maybe mint turquoise, I'm not sure but it's the most beautiful mint green Carribean color! There are orange and white two tone faux coral or spiny ostyer, but they tested glass, spacer beads, there are some smaller of the mint beads as well as spacers, they are graduated from small to several larger ones front middle.
This is an older piece, I'm not sure said to be from the 60's 70's but I'm unsure.
It's an amazing estate piece. I am almost out of all of the navajo pieces that I had from. that one estate.
see my other native jewelry.
measures- 21" total length clasp to end of chain.
Excellent condition with amazing aged patina, you can polish that back to shiny silver ,as a collector I would not.
box 23