(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 Meaning, Powers and History. Amethyst has been a prized gem for centuries. It is the birthstone for Pisces and the month of February, and the gemstone for the 6th anniversary of marriage. The stone is included in royal collections all over the world, from ancient Egypt to the British crown jewels. The Smithsonian has an amethyst that weighs 400 pounds!