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Opal Information Page. ... Having spoken to many jewellers and opal cutters at Tucson, there seems to be widespread confusion about what constitutes a black opal versus a light or crystal opal, and this is not helped when conflicting information is given out by separate dealers in quick succession.
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www.opalrough.com/opalinfo.htm
www.opalrough.com/opalinfo.htm
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Information on all opals including Boulder Opal, Black Opal, White opals and Crystal Opals. ... Opal Collectors Items ... The Romans were great lovers of Opal and regarded the gems as good luck pieces... Read more here...
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www.opalsinformation.com/
www.opalsinformation.com/
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opal is a low temperature mineral and is found in cracks or cavities that are filled in late in their geological life. Water , must be present. It is also found as a replacement after ... Opal Doublets and Opal Triplets - these are sandwiched stones made up of 2 or more pieces. Further information is provided.
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www.theimage.com/gemstone/opal/opal.html
www.theimage.com/gemstone/opal/opal.html
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Opal Gemstone Information from the American Gem Trade Association - AGTA ... A beautiful opal is one of a kind: a natural artwork with a unique pattern of rainbow flashes of color unlike any other. It's as individual as ... Colored gemstone information and jewelry fashion from the non-profit American Gem Trade Association...
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www.addmorecolortoyourlife.com/gemstones/opal.asp
www.addmorecolortoyourlife.com/gemstones/opal.asp
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Information on the mineral opal ... These are some of the base colors of Opal. Certain opals display different colors when viewed from different directions, or when the stone is turned, ... Much information on this page was generously contributed by Allan W. Eckert, the author of the most exhaustive and detailed book on opals.
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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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Information on Opals and the different type of opals ... Our opals are affordable opals and not those exceptional opals you see only in pictures or in museums. Each opal we have available has its own character you can cherish forever. ... Our Routing and Account information will be provided upon request.
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www.gemworld.com/opals.asp
www.gemworld.com/opals.asp
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HERE WE AIM TO PROVIDE INFORMATION ON ; THE WORLD'S MOST FAMOUS OPAL TYPES ; Start Bidding for your own magical gemstone at OpalAuctions.com ... OpalPlus.com - Opal Plus's original site - company info, information for Japanese Buyers What is opal? - Scientific analysis...
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www.opalinformationsite.com/
www.opalinformationsite.com/
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OPAL; Body colours; Play of colours; Patterns; Harlequin; Fire opal; Pin fire; Flame opal; Flash Opal; Girasol; OPAL CLASSIFICATION; Boulder Varieties; Black boulder; Crystal boulder; Light boulder opal; ... HOW OPAL FORMED ... There are two main forms of opal recognised - precious opal and common opal. That division is based...
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www.opalhut.com.au/ausopals/opal.htm
www.opalhut.com.au/ausopals/opal.htm
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At Coyle Wholesale Jewelers you can find Opal gemstone information and Opal education and test your opal knowledge of the opal birthstone, opal gem,gemstone opal ... 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...
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www.cwjewelers.com/stoneopal.htm
www.cwjewelers.com/stoneopal.htm
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