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  2. Yogo sapphire - Wikipedia

    en.wikipedia.org/wiki/Yogo_sapphire

    An uncut/rough yellow sapphire found at the Spokane Sapphire Mine near Helena, Montana "Yogo sapphire" is the preferred term for gems found in the Yogo Gulch, whereas "Montana sapphire" generally refers to gems found in other Montana locations. [18] More gem-quality sapphires are produced in Montana than anywhere else in North America. [18]

  3. Cave of the Crystals - Wikipedia

    en.wikipedia.org/wiki/Cave_of_the_Crystals

    Selenite "sword", 22.6 by 2.6 by 1.6 centimetres (8.90 in × 1.02 in × 0.63 in). A small version of the giant crystals, likely found in a natural cavity in the mine. A scientific team coordinated by Paolo Forti, specialist of cave minerals and crystallographer at the University of Bologna (Italy), explored the cave in detail in 2006.

  4. Agate - Wikipedia

    en.wikipedia.org/wiki/Agate

    Yemen is home to a variety of agate called mocha stone, named after the port city of Mocha (also spelled Mokha or Mukha) on the Red Sea. These agates likely formed in tuff deposits of Late Oligocene and Early Miocene age. Agates have also been found in Iran, Mongolia, China, [9] and Russia. [2] Rough agates from the Gobi Desert in Mongolia

  5. Sealed cave hiding centuries-old remains of humans and sea ...

    www.aol.com/sealed-cave-hiding-centuries-old...

    The remains of sharks, sea turtles, dogs and frogs were found inside. Sealed cave hiding centuries-old remains of humans and sea creatures found in Mexico Skip to main content

  6. Gulf of California - Wikipedia

    en.wikipedia.org/wiki/Gulf_of_California

    The Gulf of California (Spanish: Golfo de California), also known as the Sea of Cortés (Mar de Cortés) or Sea of Cortez, or less commonly as the Vermilion Sea (Mar Vermejo), is a marginal sea of the Pacific Ocean that separates the Baja California peninsula from the Mexican mainland.

  7. List of individual gemstones - Wikipedia

    en.wikipedia.org/wiki/List_of_individual_gemstones

    Bahia Emerald [2]; Carolina Emperor, [3] [4] 310 carats uncut, 64.8 carats cut; discovered in the United States in 2009, resides in the North Carolina Museum of Natural Sciences, Raleigh, NC, US

  8. Lapis lazuli - Wikipedia

    en.wikipedia.org/wiki/Lapis_Lazuli

    Originating from the Persian word for the gem, lāžward, [1] lapis lazuli is a rock composed primarily of the minerals lazurite, pyrite and calcite. As early as the 7th millennium BC , lapis lazuli was mined in the Sar-i Sang mines, [ 2 ] in Shortugai , and in other mines in Badakhshan province in modern northeast Afghanistan . [ 3 ]

  9. Mexican amber - Wikipedia

    en.wikipedia.org/wiki/Mexican_amber

    Some amber sites in Mexico. Mexican amber is mainly recovered from fossil bearing rocks in the Simojovel region of Chiapas, Mexico. It is one of the main minerals recovered in the state of Chiapas, much of which is from 15 to 23 million years old, with quality comparable to that found in the Dominican Republic. Chiapan amber has a number of ...