Generally relates to the infrequency or relative unavailability of a coin, as a direct function of important factors such as the original mintage and overall survival rate
The quality or state of being rare; rareness; thinness; as, the rarity (contrasted with the density) of gases
If someone or something is a rarity, they are interesting or valuable because they are so unusual. Sontag has always been that rarity, a glamorous intellectual