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.
Pros and Cons of Aluminum. Aluminum is a lighter metal in terms of density. However, because it canât take the same stress as steel, you typically have to use more of it, sometimes to the point of negating the cost difference.Aluminum is sometimes cheaper.luminum is a lighter metal in terms of density. However, because it canât take the same stress as steel, you typically have to use more of it, sometimes to the point of negating the cost difference. Aluminum is sometimes cheaper.