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Tourmaline: Tourmaline is found in a wide range of colors from vivid
pinks to verdant greens to Caribbean blue. Tourmaline is dichroic which means that a single gemstone displays two colors.
Tourmaline is the alternate
October birthstone. Tourmalines are mined in Brazil, Afghanistan, East Africa,
and the United States. Tourmaline rates 7 to 7 1/2 on the Mohs scale of hardness.
Enhancements: Although cutting is the most basic enhancement method
necessary to display the beauty of a gemstone, there are many fascinating methods by which man has demonstrated his ability to draw maximum color, luster,
clarity and brilliance from natures earthbound treasures. A basic understanding of these enhancement techniques will add to your appreciation of the beauty,
durability and value of the gemstone jewelry you already own, or plan to purchase in the
future. Dark blue, blue-green, and
green tourmalines are occasionally heated to lighten their color. Red
tourmalines (or
rubellite) and pink varieties are often heated or irradiated to permanently improve their colors. You can assume that the green and seafoam tourmalines
sold at MyJewelrySource have been heated unless stated otherwise. The Nigerian pink tourmalines at MyJewelrySource have not been heated and other varieties
of pink may have been heated.
Tourmaline care: Do not use an ultrasonic cleaner. Avoid sudden
temperature changes, steaming and contact with cosmetics, hairspray, perfume or household chemicals. Your
tourmaline jewelry may be cleaned with a soft-bristled brush or a cloth
with plain or soapy water.
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