(metallurgy). To separate a metal or a mineral from an ore by various chemical or mechanical methods. (pharmacology). A pharmaceutical preparation obtained by dissolving the active constituents of a drug with a suitable menstruum, evaporating the solvent, and adjusting to prescribed standards.
Tibetans consider amethyst sacred to the Buddha and make prayer beads from it. Amethyst is considered the birthstone of February. In the Middle Ages, it was considered a symbol of royalty and used to decorate English regalia.
Amethyst is a commonly seen semiprecious gemstone that has a unique violet color. It belongs to the quartz family and is traditionally the birthstone of people born in the month of February. Due to its legendary powers and striking beauty, Amethyst has always been considered to be a valued gemstone since the time of the Romans and Greeks.