Multicolored Necklace Possibly Tourmaline Vintage Green Pink

Vintage Multicolored necklace. I have too many things in my jewelry box so I’m trying to narrow down what I have. Measurements are approximate and colors may be off because of lighting. I believe the necklace to be tourmaline chips as that is what I was told but I’m not positive so they may not be tourmaline. This has age (I believe it’s vintage or at least I’ve had them a long time) and it definitely shows wear and it has flaws especially to the clasp where the color has worn off. Still a very pretty necklace. Bundle with other items for greater savings.