Coccydynia is often caused by an injury, but it may occur seemingly spontaneously. There are many causes of tailbone pain that can mimic coccydynia, including sciatica, infection (including shingles of the buttocks), pilonidal cysts, sacroiliitis, and fractured bone (broken tailbone or tailbone fracture).
Characteristics: Curium is a hard, dense radioactive silvery-white metal. It tarnishes slowly in dry air at room temperature. Most compounds of trivalent curium are slightly yellow in color. Curium is highly radioactive and it glows red in the dark.
2) Non-Ferrous metal is non-magnetic metals (copper, aluminum, brass, lead, etc.) It will take approximately 50% more of a non-ferrous metal to be as detectable as a ferrous metal. Manganese is also a non-ferrous metal and difficult for most metal detectors to detect.