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Opals
Published: June 20, 2007 According to an Australian aborigine legend, the storm god created opals when he shattered a rainbow into pieces. Opals come in nearly every color, but it is their iridescent quality, their "play of color," that characterizes them. Australia is the largest source for this gem, supplying nearly 95 percent of the world's opals. Mexico produces the distinctive fire opal, which occurs in shades of red, orange, and yellow.
Opals consist of 2 to 6 percent water and will become brittle if they dry out. To keep opal jewelry hydrated, wear it on a regular basis. Or, store it in oil as gemologist Arbel Shemesh of Fire Mountain Gems recommends. When cleaning an opal, use warm, soapy water. Avoid steam or ultrasonic cleaning, which may cause cracking or color damage. Also, pay attention to whether your opal has been treated. Common treatments include oil, wax, plastic, and smoke, which prevent cracks and enhance color and brilliance. If a gemstone has been treated with one of these methods, do not repolish it.
If you like opals but are on a beading budget, consider some cost-effective alternatives. Shemesh suggests synthetic opals, which are available in both black and white. Or, try rose quartz as an alternative to pink opal. If you prefer a crystal substitute, Swarovski produces crystals in opal colors and finishes.
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