This amethyst cluster has polished sides but the bottom and top have been left raw! Never seen one quite like this! 

Amethyst is a meditative stone due to its calming energy over both the emotional and physical parts of a person. This property also brings balance, patience. And restored harmony. Amethyst is used to bring sobriety, as well as healing negative pasts from loss and grief. It can also be used for spiritual work and psychic abilities. Available here