Unique Green Gemstone Necklace

Unique Green Gemstone Necklace Approx measurements in pics. Bronze colored accents/hardware. Combination of gemstones (I suspect malachite)/metal/wood/ glass(?) or plastic...it does NOT look like plastic to me, but I could be wrong. Cross posted. Purchase helps support environmental education projects for rural island communities and underrepresented children in picture books. See emilylouina.com for more info. Thank you!