Blue Amber from Indonesia Oxidized Copper Pendant
The stone is Blue Amber from Indonesia, it glows blue under blacklight(see video).
The wire is solid copper that has been oxidized and polished for an antique look. The cord necklace is included, it is nylon and is adjustable roughly 18"-20". Please note that copper naturally darkens with age and if necessary may be cleaned to lighten it back up. The last photo shows back of the pendant, it is next to a ruler for size comparison.