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  2. Cave of the Crystals - Wikipedia

    en.wikipedia.org/wiki/Cave_of_the_Crystals

    Cave of the Crystals or Giant Crystal Cave (Spanish: Cueva de los cristales) is a cave connected to the Naica Mine at a depth of 300 metres (980 ft), in Naica, Chihuahua, Mexico. It takes the form of a chamber within the limestone host rock of the mine, and is about 109 metres (358 ft) long with a volume of 5,000 to 6,000 cubic metres (180,000 ...

  3. Empress of Uruguay - Wikipedia

    en.wikipedia.org/wiki/Empress_of_Uruguay

    The Empress of Uruguay is the world's largest amethyst geode, standing at a height of 3.27 meters. It is open along its length and weighs 2.5 tons in its current state. It was discovered in 2007 in the Artigas department, Uruguay by the Uruguayan mining company Le Stage Minerals.

  4. Beryl - Wikipedia

    en.wikipedia.org/wiki/Beryl

    As of 1999, the world's largest known naturally occurring crystal of any mineral is a crystal of beryl from Malakialina, Madagascar, 18 m (59 ft) long and 3.5 m (11 ft) in diameter, and weighing 380,000 kg (840,000 lb). [13]

  5. Bahia Emerald - Wikipedia

    en.wikipedia.org/wiki/Bahia_Emerald

    The Bahia Emerald is one of the largest emeralds and contains the largest single crystal ever found. The stone, weighing approximately 379 kg (836 lbs) [1] (approximately 189,600 carats) originated from Bahia, Brazil; its emerald crystals embedded in black schist.

  6. The biggest diamond in over a century is found in Botswana ...

    www.aol.com/biggest-diamond-over-century-found...

    Botswana, a country of 2.6 million people in southern Africa, is the second-biggest producer of natural diamonds behind Russia and has unearthed all of the world’s biggest stones in recent years.

  7. Celestine (mineral) - Wikipedia

    en.wikipedia.org/wiki/Celestine_(mineral)

    The world's largest known geode, a celestine geode 35 feet (11 m) in diameter at its widest point, is located near the village of Put-in-Bay, Ohio, on South Bass Island in Lake Erie. The geode has been converted into a viewing cave, Crystal Cave , with the crystals which once composed the floor of the geode removed.

  8. Dom Pedro aquamarine - Wikipedia

    en.wikipedia.org/wiki/Dom_Pedro_aquamarine

    The Dom Pedro aquamarine is the world's largest cut aquamarine gem. It was cut from a crystal originally weighing approximately 60 pounds (27 kg) and measuring almost 2 feet (0.61 m) in length. The stone was mined in Pedra Azul, in the state of Minas Gerais in Brazil around 1980, and named after the Brazilian emperors Pedro I and Pedro II.

  9. Second-largest diamond ever unearthed found in Botswana ... - AOL

    www.aol.com/news/second-largest-diamond-ever...

    A 2,492-carat diamond was unearthed at Botswana's famed Karowe mine this week by Canada's Lucara Diamond, one of the largest stones ever.. Lucara Diamond, in a news release Wednesday, said the ...