Really Long Black Stone (Possibly Tourmaline) Chain Link Necklace. No Clasp.

This long elegant black chain link stone beaded necklace is perfect for adding a touch of sophistication to any outfit. The stones are all different shapes from regular balls to natural formations to even a swirl form (this particular bead may even be lucite). The sleek design and classic color make it a versatile accessory for any occasion. The necklace measures a total of 54 in. I am not sure what stone this is but it does have variations in opaqueness. It is see-through when held up to the light within the same stone. If you know you know. 😁 Please see the pictures included because I try to capture the variety of changes within the same stone. There is also one stone that I noticed was chipped near the chain but I didn't notice it until I was trying to document the opaqueness of this stone.