Rhodolite is a member of the garnet family. Garnet is a family of related minerals. Each has a common crystal structure and a similar chemical composition.
Rhodolite is a red variety less common than its related type, pyrope garnet. It is a mixed crystal of almandine and pyrope and is of a wonderful velvety red colour with a fine violet or raspberry-red hue. This was originally discovered in the USA, but is now mainly available from the gemstone mines in East Africa, India and Sri Lanka.