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  2. Opal - Wikipedia

    en.wikipedia.org/wiki/Opal

    Fire opal is a transparent to translucent opal with warm body colors of yellow to orange to red. Although fire opals don't usually show any play of color, they occasionally exhibit bright green flashes. The most famous source of fire opals is the state of Querétaro in Mexico; these opals are commonly called Mexican fire opals. [47]

  3. List of mines in Mexico - Wikipedia

    en.wikipedia.org/wiki/List_of_mines_in_Mexico

    This list of mines in Mexico is subsidiary to the list of mines article and lists working, defunct and future mines in the country and is organised by the primary mineral output. For practical purposes stone, marble and other quarries may be included in this list.

  4. Fire agate - Wikipedia

    en.wikipedia.org/wiki/Fire_agate

    Fire agate, a variety of chalcedony, is a semi-precious natural gemstone discovered so far only in certain areas of central and northern Mexico and the southwestern United States (New Mexico, Arizona and California). [1] Approximately 24-36 million years ago these areas were subjected to massive volcanic activity during the Tertiary Period.

  5. More flooding in Mexican mine frustrates rescue effort for 10 ...

    www.aol.com/news/more-flooding-mexican-mine...

    Mexico's efforts to save 10 miners who became trapped in a flooded coal mine 13 days ago hit another setback as underground water levels have surged higher, officials said on Monday. The miners ...

  6. Forest fires burn in nearly half of Mexico’s drought-stricken ...

    www.aol.com/news/forest-fires-burn-nearly-half...

    Forest fires were burning in nearly half of Mexico’s drought-stricken states Monday fueled by strong winds. The National Forestry Commission reported 58 active fires in 15 states, including in ...

  7. Traditional metal working in Mexico - Wikipedia

    en.wikipedia.org/wiki/Traditional_metal_working...

    Artisan assembling silver necklace in Oaxaca Silver necklace with ruby, emerald and Mexican opal with two jaguars in confrontation from Guadalajara on display at the Museum of Arte Popular in Mexico City. Jewelry making began well before the arrival of the Spanish, with mines providing supplies of metals and stones.

  8. Soldiers and civilians are dying as Mexican cartels embrace a ...

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  9. La Revancha mine - Wikipedia

    en.wikipedia.org/wiki/La_Revancha_mine

    The deposit that the mine is on has been used to mine gold, copper and platinum for decades, before being operated by Caracol Mining Company from 2003 until 2006 [5] to mine antimony and baryte. [6] Barite grinding mill. Caracol Mining Company sold their assets to Blackfire Exploration Mexico, [5] operated by brothers Brad and Brent Willis from ...

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