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Amethyst Information

THE BIRTHSTONE for FEBRUARY

Refractive Index : 1.544-1.553

Specific Gravity : 2.66 (+.03,-.02)

    Amethyst is the most highly valued member of the Quartz mineral family, and it has Purple hues that vary from very pale to dark.  The medium-dark to dark tones are considered the most desirable and of course are quite a bit more expensive than the lighter tones.  The finest gems usually come from the Elahara mines in Sri Lanka, and the Pau d'Arco mines in Brazil. These fine gemstones are deep dark and rich in color, with all the fire in sparkle you would want to see. Most Amethysts on the market are relatively free of inclusions.
    Amethyst is heat sensitive, excessive heat could turn the stone colorless, or it may produce a Citrine or green color, whereas an abrupt temperature change may fracture the stone. Chemicals that could attack this gem are hydrofluoric acids, ammonium fluoride, and alkalies.
    Sources for this gemstone are Brazil, Sri Lanka, Uruguay, Madagascar, Zambia, U.S., Canada, and India.

TREATMENTS - Typically Amethyst is not treated. Amethyst that has been heat treated can produce Colorless Quartz, Yellow Citrine, and Madeira Citrine.
CARE - It is usually safe to clean Amethyst jewelry in an UltraSonic Cleaner, but risky to use a steamer.  We recommend Ionic Cleaners and/or warm, soapy water and a soft brush as the best way to clean your gemstone jewelry.