Spiderweb Obsidian Earrings Stone Crystal Jewelry

Earrings of stunning Spiderweb Obsidian crystal stones in 925 silver settings with 925 ear wires. Including hooks, they dangle 2 inches long, 5/8 inch wide. The stones are commonly called "Spiderweb Obsidian," however it may possibly be slag. According to chat on Mindat, some say that is is found in Mexico, some have said that is is found in Oregon, some say it is natural obsidian, some believe that it is slag.