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Black Opal Mine brings you the finest Australian black opal, white opal, boulder opal and rough opal gems from the opal fields of Lightning Ridge and Cooper Pedy, NSW - ... We supply Australian opals and gemstones from the opal fields of Lightning Ridge and Cooper Pedy, NSW. We sell quality individual gems,
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www.blackopalmine.com/
www.blackopalmine.com/
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Oregon.--During 1988, West Coast Gemstones, Inc., began mining and marketing a variety of very fine-quality opals from Opal Butte in Morrow County, OR. The varieties produced includes hyalite, rainbow, contra luz, hydrophane, crystal, fire, blue, and dendritic.
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minerals.usgs.gov/minerals/pubs/commodity/gemstones/sp1...
minerals.usgs.gov/minerals/pubs/commodity/gemstones/sp14-95/opal.html
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The milkiness of many white and gray opals is attributable to an abundance of tiny gas-filled cavities in them. Precious opal reflects light with a play of brilliant colors across the visible spectrum, red being the most valued. ... Home Online store Design tips Gift idea Judaica iii Gemstones iii Your gemstone Greeting Cards...
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www.all-that-gifts.com/se/opal.html
www.all-that-gifts.com/se/opal.html
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The Romans considered opal a symbol of hope, an appropriate attribute for a gem with a rainbow locked within it. The Arabs believed opals fell from heaven in flashes of lightning, ... These romantic notions are inspired by one of the most uniquely beautiful gemstones nature has ever produced-the dramatic, mysterious opal.
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www.cwjewelers.com/stoneopal.htm
www.cwjewelers.com/stoneopal.htm
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Certain opals display different colors when viewed from different directions, or when the ... SIMILAR GEMSTONES; The play of color exhibited in opal is distinctive, and no gemstones (aside from some synthetic materials which somewhat emulate opal) can duplicate this gemstone. Mexican fire opal may appear similar to topaz,
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www.minerals.net/gemstone/gemstone/opal/opal.htm
www.minerals.net/gemstone/gemstone/opal/opal.htm
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Information on the mineral opal ... Opal is one of the most precious gemstones. Black Opal is the most valuable and desired form, but White Opal and Precious Fire Opal are also quite costly. Opals are cut and polished into cabochons, and in a few rare cases are facetted into several cuts.
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www.minerals.net/mineral/silicate/tecto/quartz/opal.htm
www.minerals.net/mineral/silicate/tecto/quartz/opal.htm
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That was the birth of the Opals. The group of fine Opals includes quite a number of wonderful gemstones, which share one characteristic: they shine and sparkle in a continually changing play of colours full of fantasy, which experts describe as “opalising”.
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www.gemstone.org/gem-by-gem/english/opal.html
www.gemstone.org/gem-by-gem/english/opal.html
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What kind of gemstones show traces that they are growing below the ground? Do they sometimes produce waste that will come to the top of the surface of... ... The opals run right along the centre, and I cannot get conventional cleaner onto the opals..I haven't worn it for ages because it looks awful.
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Opal Auctions is the number one site to buy and sell opals & opal jewelry online. Registration is free for all, and we stock a wide variety of quality opals and related gemstones ... We auction opals from Australia and around the world, with over 60 international sellers and 61,000+ auctions each day.
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www.opalauctions.com/
www.opalauctions.com/
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