This is a crystal pendant containing black rutile with a rainbow effect. It appears to be black tourmaline. There are cracks, but it has a beautiful rainbow inside. I purchased it at the Ikebukuro Mineral Show. I bought it because the rainbow was so beautiful, but I never wore it and it has been stored away. I've decided to sell it as part of a decluttering effort. I'm not sure what the bail is made of, but it's probably silver. It became clean after polishing with a silver polishing cloth. This is a used item and has been stored at home. I recommend purchasing it if you understand this. The cluster in the photos is not included in the product. Black rutile-in quartz Length: Approximately 3.4cm Thickness: Approximately 1cm Bail Length: Approximately 1cm Inner diameter: Approximately 0.4cm #BlackTourmalineInQuartz #BlackRutile #Rainbow #PowerStone #Pendant #Necklace