Native American Vintage sterling silver and turquoise authentic pendant necklace

Vintage 1970s era sterling silver pendant necklace. I bid on this fabulous necklace years ago. I think it is very unique because the beads are actually strung on a chain. The beads appear to be two-toned. It was auctioned as sterling, perhaps the smaller beads are a different metal. I don't know enough about metals to say for sure. The pendant is substantial in size and is a great addition to any outfit. Please pictures for measurements. Thanks for looking. Have a great day! authentic