(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.
These periods of time are divided into twelve sections, which are believed to represent the twelve tribes of Israel in the book of Exodus. Each section, or Zodiac sign is associated with a particular gemstone. The idea is that your Astrological sign is linked to a gemstone on earth that enables the wearer to tap into his or her hidden power. Gemstones also have holistic meanings and healing characteristics to benefit the mind and body.