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    3. mexican fire opal jewelry stone what to look out for so you are fairley sure it is a genuine gem stone you are looking at
    mexican fire opal jewelry stone what to look out for so you are fairley sure it is a genuine gem stone you are looking at

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    0  Views: 345 Answers: 1 Posted: 14 years ago
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      Mexican fire opals are named for their uniform flaming orange or cherry red body color. They are always very brightly colored, and can be a little bit cloudy to almost perfectly transparent. Transparent specimens have a good luster. Like the traditional opal, fire opals can occasionally display signs of iridescence in very bright light. Fire opals have a very low density, lower than that of glass, with which it is sometimes confused. Fire opals, like other opals, are relatively hard, rating a 5.5 to 6.5 on the hardness scale.


      Read more here>>http://www.jewelsforme.com/fire_opal-science

      11 years ago. Rating: 4
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