This is Mexican Fire Opal - "the other great opal" - apart from the famous Ethiopian and Australian opals. It has a combination of earthy rooted grounded energy in its matrix (the non shiny part) and then a raging transparent section all about Vision and Imagination (energetically). Custom gold-filled wire wrapped for us. Chain not included, but we do have them available. Length: 3.4cm; Width: 1.5cm; Depth: .8cm Weight: 21.5ct Origin: Latin America, Mexico