Mexican Fire Opal

Opal is a hydrated amorphous form of silica, with a high water content. It occurs in the fissures of almost any kind of rock.

Fire Opal is the name used for opal that is colored. It is not a name given because of a phenomenon. The gemstone cabochon may or may not have the rainbow flash, but it is a lovely color usually ranging from yellow, to orange, to red. The color of these gemstone cabochons comes from the presence of iron.

Opal fire flashing rainbow play-of-color is caused by diffraction of light by silica spheres stacked internally in the stone.

Fire Opal is mined in the Mexican states of Queretaro, Hidalgo, Guerrero, Michoacan, Julisio, Chihuahua and San Luis Potosi. However, the most famous source of Mexican Fire Opals is the state of Querétaro, where Fire Opal was first discovered in 1835 and is still be found today.

Rock strata containing opals run through the Mexican highlands, with their many extinct volcanoes. With a few exceptions, the gemstone, which lies hidden in cavities and crevices of Rhyolite, is extracted in open-cast mines. The work has left behind canyons with walls up to 20 feet high and deep passages which wind their way through the mining areas. Today, the Fire Opal is regarded as the national gemstone of Mexico.

These beautiful Mexican Fire Opals cabochons are cut in their rhyolite host material. This type of Mexican Fire Opal is sometimes referred to as a Cantera Opal. Most Mexican Fire Opal does not display the play-of-color. But ours does! The lovely phenomenon, of course, is best seen under bright light.

Metaphysical Properties of Fire Opal: It is said Fire Opal assist one in overcoming shyness. It can help make you feel more optimistic, socially outgoing, and confident.

  • Gemstone Iridescent Mexican Fire Opal Cabochon Stone #24 Gemstone Iridescent Mexican Fire Opal Cabochon Stone #24

    Mexican Fire Opal Cabochon #24

    Oval shaped semi precious gemstone Mexican Fire Opal with rainbow fire flash cabochon 17.5 mm by 12 mm by 8 mm thick.  Please view the video of the cabochon for the full flashing rainbow effect! Fire Opal is the name used for...

    $120.00
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  • Iridescent Mexican Fire Opal Cabochon Orange Gemstone #23 Iridescent Mexican Fire Opal Cabochon Orange Gemstone #23

    Mexican Fire Opal Cabochon #23

    Oval shaped orange semi precious gemstone Mexican Fire Opal with rainbow fire flash cabochon 21 mm by 15 mm by 9 mm thick.  Please view the video of the cabochon for the full flashing rainbow effect! Fire Opal is the name used...

    $300.00
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  • Iridescent Mexican Fire Opal Cabochon Semi Precious Gemstone #22 Iridescent Mexican Fire Opal Cabochon Semi Precious Gemstone #22

    Mexican Fire Opal Cabochon #22

    Oval shaped orange semi precious gemstone Mexican Fire Opal with rainbow fire flash designer cabochon 24 mm by 17 mm by 9 mm thick.  It is not flat, but slightly rounded on the back. Please view the video of the cabochon for...

    $400.00
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  • Mexican Fire Opal Cabochon Semi Precious Gemstone #1 Mexican Fire Opal Cabochon Semi Precious Gemstone #1

    Mexican Fire Opal Cabochon #1

    Oval shaped semi precious gemstone Mexican Fire Opal with rainbow fire flash designer cabochon 15 mm by 13 mm by 9 mm thick.  It is not flat, but slightly rounded on the back. Please view the video of the cabochon for the full...

    $120.00
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  • Mexican Fire Opal Cabochon Semi Precious Gemstone #21 Mexican Fire Opal Cabochon Semi Precious Gemstone #21

    Mexican Fire Opal Cabochon #21

    Oval shaped semi precious gemstone Mexican Fire Opal designer cabochon with fire flash 21 mm by 17 mm by 11.5 mm thick. Please view the video of the cabochon for the full flashing rainbow effect! Fire Opal is the name used for opal that...

    $300.00
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  • Mexican Fire Opal Cabochon Semi Precious Gemstone #20 Mexican Fire Opal Cabochon Semi Precious Gemstone #20

    Mexican Fire Opal Cabochon #20

    Oval shaped semi precious gemstone Mexican Fire Opal designer cabochon with fire flash 18 mm by 16 mm by 11.5 mm thick. Please view the video of the cabochon for the full flashing rainbow effect! Fire Opal is the name used for opal that...

    $400.00
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  • Mexican Fire Opal Cabochon Semi Precious Gemstone #19 Mexican Fire Opal Cabochon Semi Precious Gemstone #19

    Mexican Fire Opal Cabochon #19

    Oval shaped semi precious gemstone Mexican Fire Opal designer cabochon with fire flash 15 mm by 13 mm by 5.5 mm thick. Please view the video of the cabochon for the full flashing rainbow effect! Fire Opal is the name used for opal that...

    $225.00
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  • Mexican Fire Opal Cabochon Semi Precious Gemstone #8 Mexican Fire Opal Cabochon Semi Precious Gemstone #8

    Mexican Fire Opal Cabochon #8

    Oval shaped orange semi precious gemstone Mexican Fire Opal with fire flash designer cabochon 20 mm by 14 mm by 8 mm thick.  Please view the video of the cabochon for the full flashing rainbow effect! Fire Opal is the name used for...

    $300.00
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  • Mexican Fire Opal Cabochon Semi Precious Gemstone 14 Mexican Fire Opal Cabochon Semi Precious Gemstone 14

    Mexican Fire Opal Cabochon #14

    Tiny freeform nugget shaped semi precious gemstone Mexican Fire Opal designer cabochon without matrix and with lots of fire flash.  It is 14.5 mm by 8 mm by 7 mm thick. Fire Opal is the name used for opal that is colored. It is...

    $120.00
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  • Mexican Fire Opal Cabochon Semi Precious Gemstone #2 Mexican Fire Opal Cabochon Semi Precious Gemstone #2

    Mexican Fire Opal Cabochon #2

    Freeform shaped larger semi precious gemstone Mexican Fire Opal designer cabochon 28 mm long by 19 mm wide and 11 mm thick.  Please view the video of the cabochon for the full flashing rainbow effect! Fire Opal is the name used...

    $200.00
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  • Mexican Fire Opal Cabochon #11 Mexican Fire Opal Cabochon #11

    Mexican Fire Opal Cabochon #11

    Freeform "diamond" shaped orange semi precious gemstone Mexican Fire Opal with fire flash designer cabochon 18 mm by 19 mm point to point and 7 mm thick.  It has a small rough pit on one edge-visible in the last picture. Fire...

    $100.00
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  • Mexican Fire Opal Cabochon #18 Mexican Fire Opal Cabochon #18

    Mexican Fire Opal Cabochon #18

    Tiny freeform nugget shaped semi precious gemstone Mexican Fire Opal designer cabochon without matrix and with lots of fire flash.  It is 11 mm by 8 mm by 4 mm thick. Please view the video of the cabochon for the full flashing...

    $120.00
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  • Mexican Fire Opal Cabochon #17 Mexican Fire Opal Cabochon #17

    Mexican Fire Opal Cabochon #17

    Freeform diamond shaped semi precious gemstone Mexican Fire Opal designer cabochon 19.5 mm long by 15 mm wide and 6.5 mm thick.  Please view the video of the cabochon for the full flashing rainbow effect! Fire Opal is the name used...

    $150.00
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  • Mexican Fire Opal Cabochon #16 Mexican Fire Opal Cabochon #16

    Mexican Fire Opal Cabochon #16

    Lovely oval shaped semi precious gemstone Mexican Fire Opal designer cabochon 16 mm by 12 mm by 11 mm thick.  Please view the video of the cabochon for the full flashing rainbow effect! Fire Opal is the name used for opal that...

    $120.00
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  • Mexican Fire Opal Cabochon #15 Mexican Fire Opal Cabochon #15

    Mexican Fire Opal Cabochon #15

    Oval shaped semi precious gemstone Mexican Fire Opal designer cabochon 19 mm by 11 mm by 8 mm thick.  Please view the video of the cabochon for the full flashing rainbow effect! Fire Opal is the name used for opal that is...

    $150.00
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  • Mexican Fire Opal Cabochon #13 Mexican Fire Opal Cabochon #13

    Mexican Fire Opal Cabochon #13

    Oval shaped orange semi precious gemstone Mexican Fire Opal with fire flash designer cabochon 21 mm by 17 mm by 10 mm thick.  Please view the video of the cabochon for the full flashing rainbow effect! Fire Opal is the name...

    $400.00
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  • Mexican Fire Opal Cabochon #12 Mexican Fire Opal Cabochon #12

    Mexican Fire Opal Cabochon #12

    Oval shaped orange semi precious gemstone Mexican Fire Opal with rainbow fire flash designer cabochon 22 mm by 16 mm by 7 mm thick.  Please view the video of the cabochon for the full flashing rainbow effect! Fire Opal is...

    $400.00
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  • Semi precious gemstone Mexican Fire Opal designer cabochon 7 Semi precious gemstone Mexican Fire Opal designer cabochon 7-2

    Mexican Fire Opal Cabochon #7

    Oval shaped orange semi precious gemstone Mexican Fire Opal with fire flash designer cabochon 20 mm by 16 mm by 10 mm thick.  This one is curved on the bottom. Please view the video of the cabochon for the full flashing rainbow...

    $120.00
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  • Mexican Fire Opal Cabochon Semi Precious Gemstone 6 Mexican Fire Opal Cabochon Semi Precious Gemstone 6-2

    Mexican Fire Opal Cabochon #6

    Oval shaped orange semi precious gemstone Mexican Fire Opal with fire flash designer cabochon 20 mm by 14 mm by 4.5 mm thick.  This one is slightly curved on the bottom. Please view the video of the cabochon for the full flashing...

    $150.00
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  • Mexican Fire Opal Cabochon #5 Mexican Fire Opal Cabochon #5

    Mexican Fire Opal Cabochon #5

    Freeform nugget shaped semi precious gemstone Mexican Fire Opal with fire flash designer cabochon 11.5 mm long by about 9 mm thick.  This one has no matrix! Please view the video of the cabochon for the full flashing rainbow effect! Fire...

    $120.00
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  • Mexican Fire Opal Cabochon Semi Precious Gemstone 9 Mexican Fire Opal Cabochon Semi Precious Gemstone 9-2

    Mexican Fire Opal Cabochon #9

    Oval shaped orange semi precious gemstone Mexican Fire Opal with iridescent fire flash designer cabochon 14 mm by 12 mm by 8 mm thick.  Please view the video of the cabochon for the full flashing rainbow effect! Fire Opal is...

    $120.00
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  • Mexican Fire Opal Gemstone Cabochon Stone #4 Mexican Fire Opal Gemstone Cabochon Stone #4-2

    Mexican Fire Opal Cabochon #4

    Oval shaped orange stone Mexican Fire Opal with iridescent fire flash designer cabochon 17 mm by 13 mm by 9 mm thick.  This one is slightly curved on the bottom. Please view the video of the cabochon for the full flashing...

    $120.00
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  • Mexican Fire Opal Cabochon #10 Mexican Fire Opal Cabochon #10

    Mexican Fire Opal Cabochon #10

    Oval shaped semi precious gemstone Mexican Fire Opal with rainbow fire flash designer cabochon 15 mm by 13 mm by 7 mm thick.  Please view the video of the cabochon for the full flashing rainbow effect! Fire Opal is the name...

    $120.00
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  • Mexican Fire Opal Cabochon Semi Precious Gemstone 3 Mexican Fire Opal Cabochon Semi Precious Gemstone 3-2

    Mexican Fire Opal Cabochon #3

    Oval shaped semi precious gemstone orange Mexican Fire Opal with iridescent fire flash designer cabochon 23 mm by 17 mm by 9 mm thick.  This one is slightly curved on the bottom. Please view the video of the cabochon for the full...

    $300.00
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