Gorgeous Vintage Necklace

This beauty seems to be onyx or obsidian but can also be be another type of stone . It is cold to the touch and remains cold It is also a double knotted vintage necklace ,,full strand . Weights 140 grams Measures 14 inches and measurements with pendant 16 inches I am decluttering my closet and Jewelry boxes ,selling items at an affordable cost . I also like to mention in all my items listed in my closet , the following 👇 Due to the delicate nature of preloved items and vintage , subtle flaws and natural signs of wear are to be expected.