February Birthday Gifts
February birthstone is Amethyst. Amethyst is a purple variety of quartz (SiO2) and owes its violet color to irradiation, iron impurities, and the presence of trace elements, which result in complex crystal lattice substitutions. The hardness of the mineral is the same as quartz, thus it is suitable for use in jewelry. The best varieties of amethyst can be found in Siberia, Sri Lanka, Brazil and the far East. Green quartz is sometimes incorrectly called green amethyst, which is a misnomer and not an appropriate name for the material, the proper terminology being prasiolite. Other names for green quartz are vermarine or lime citrine.
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