What an amazing stone! It's Maligano Jasper from Indonesia.
Comes with a faux-copper 24" chain.
Tallest & widest dimensions
2 1/2" x 1 1/4""
About the copper
I used pure copper wire, oxidized it to achieve a timeless "antiqued" look, polished it to bring out the copper highlights, and then sealed it to capture its patina and prevent further darkening. No further polishing will ever be needed. Protect from scratches and bumps against hard surfaces or other jewelry.