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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.
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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