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Gemstones, Minerals & Fossils
Gemstones and Minerals
❓Your Mineral Identification Questions answered here
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<blockquote data-quote="user 4386" data-source="post: 653125" data-attributes="member: 4386"><p>Yes, but Mexican fire opal is a constant colour not a play of colours like you illustrated - really a form of common opal not precious opal. I have never been much impressed by them. Unlike our precious opal, fire opal is actually coloured - the colour being very fine inclusions of iron oxide grains.</p><p></p><p>"Mexican Fire Opals are just<strong> orange common opals</strong> that are found in Mexico and a few other locations. Their coloration ranges through the normal shades of a fire, hence the name, and they’re noted for often lacking the color play on the interior that has made opals from Australia and Ethiopia so famous".</p><p></p><p>I know a few other localities where there is a proper play of fire, notably in Brazil - also a locality in central America, but they are in a completely transparent and clear matrix, not white or black, and not as impressive.</p></blockquote><p></p>
[QUOTE="user 4386, post: 653125, member: 4386"] Yes, but Mexican fire opal is a constant colour not a play of colours like you illustrated - really a form of common opal not precious opal. I have never been much impressed by them. Unlike our precious opal, fire opal is actually coloured - the colour being very fine inclusions of iron oxide grains. "Mexican Fire Opals are just[B] orange common opals[/B] that are found in Mexico and a few other locations. Their coloration ranges through the normal shades of a fire, hence the name, and they’re noted for often lacking the color play on the interior that has made opals from Australia and Ethiopia so famous". I know a few other localities where there is a proper play of fire, notably in Brazil - also a locality in central America, but they are in a completely transparent and clear matrix, not white or black, and not as impressive. [/QUOTE]
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Gemstones, Minerals & Fossils
Gemstones and Minerals
❓Your Mineral Identification Questions answered here
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