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Keyword: diamonds

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  • 'Quadrillion' tons of diamonds discovered deep below Earth's surface

    07/18/2018 3:57:58 AM PDT · by a little elbow grease · 33 replies
    foxnews.com ^ | 7/17/18 | Jennifer Earl
    (snip) --- A team of scientists made an enormous discovery when they recently uncovered a "quadrillion" tons of diamonds buried more than 100 miles below Earth's surface, according to a new study. Researchers from the Massachusetts Institute of Technology (MIT), Harvard, the Carnegie Institution of Washington and several other universities used seismic devices to measure the speed of sound waves traveling through the Earth's crust. "Sound waves move at various speeds through the Earth, depending on the temperature, density, and composition of the rocks through which they travel," MIT explained in a news release. "Scientists have used this relationship between...
  • Sound waves reveal diamond cache deep in Earth's interior

    07/16/2018 7:57:43 PM PDT · by DUMBGRUNT · 35 replies
    phys.org ^ | 16 july 2018 | Jennifer Chu
    There may be more than a quadrillion tons of diamond hidden in the Earth's interior, according to a new study from MIT and other universities In the new study, scientists estimate that cratonic roots may contain 1 to 2 percent diamond. Considering the total volume of cratonic roots in the Earth, the team figures that about a quadrillion (1016) tons of diamond are scattered within these ancient rocks, 90 to 150 miles below the surface. However, in using seismic data to map the Earth's interior, scientists have been unable to explain a curious anomaly: Sound waves tend to speed up...
  • De Beers admits defeat over man-made diamonds

    05/29/2018 10:07:50 PM PDT · by Berlin_Freeper · 45 replies
    money.cnn.com ^ | May 29, 2018 | Ivana Kottasová
    ... De Beers said it would invest $94 million over four years to build a new synthetic diamond production facility near Portland, Oregon.
  • Buying diamonds? Avoid Drew Brees’s $9-million mistake

    04/07/2018 3:58:36 AM PDT · by C19fan · 66 replies
    CBS Marketwatch ^ | April 7, 2018 | Maria LaManga
    When it comes to investing, diamonds aren’t a quarterback’s best friend. Drew Brees, quarterback for the New Orleans Saints, is suing a California jeweler who sold Brees and his wife Brittany about $15 million in investment-grade diamonds. The diamonds are actually worth about $6 million, the couple later found out through an independent appraiser, according to a report from The San Diego Union-Tribune.
  • 5 Record Breaking Gemstones Even Billionaires Can’t Buy

    02/20/2018 4:55:34 PM PST · by bananaman22 · 14 replies
    Oilprice.com ^ | 20-02-2018 | Charles
    As Elizabeth Taylor once said: “I adore wearing gems, but not because they are mine. You can't possess radiance, you can only admire it.” It’s a good philosophy, because when it comes to the world’s biggest, rarest and most extraordinary gemstone discoveries, no one—not even billionaire President Donald Trump—could afford the possession. We’re not talking about the average diamond engagement ring that sets you back $4,000 and was probably grown in a lab. And we’re not talking about the $3,000 ruby that was probably treated. We’re talking about the rarest gemstones in the world, like the ‘Guinness Emerald’ that came...
  • Lesotho Diamond Weighs More Than a Baseball

    01/15/2018 12:42:40 PM PST · by DUMBGRUNT · 25 replies
    NYT ^ | RICHARD PÉREZ-PEÑA
    The 910-carat diamond found at the Letseng mine in Lesotho is the fifth-largest gem-quality diamond ever found. It said the stone is a D color, Type IIa diamond, meaning it is colorless and very radiant, without any yellow tint or impurities like nitrogen that absorb light and decrease luster. Gem Diamond’s stock jumped sharply on news of the discovery.
  • The German town encrusted with diamonds

    11/28/2017 2:57:15 AM PST · by Berlin_Freeper · 22 replies
    bbc.com ^ | 22 November 2017 | Matthew Vickery
    As I climbed the narrow staircase of the gothic church tower in Nördlingen, Germany, the worn stone steps appeared to glimmer in the sunlight, bringing unexpected flashes of light to what should have been a dark, grey climb to the top. “That’s because the entire tower is made out of suevite stone, and enclosed in it are small diamonds,” Horst Lenner, the tower watchman, told me enthusiastically.
  • It rains solid diamonds on Uranus and Neptune

    08/25/2017 6:57:33 PM PDT · by Loyalist · 55 replies
    National Post ^ | August 25, 2017 | Sarah Kaplan, Washington Post
    Researchers say they were able to produce 'diamond rain' using fancy plastic and high-powered lasers to recreate the intense conditions of the planets .... Consider this your daily reminder that the solar system is even more awesomely bonkers than you realized: On Uranus and Neptune, scientists forecast rain storms of solid diamonds. The gems form in the hydrocarbon-rich oceans of slush that swath the gas giants’ solid cores. Scientists have long speculated that the extreme pressures in this region might split those molecules into atoms of hydrogen and carbon, the latter of which then crystallize to form diamonds. These diamonds...
  • Sold: the Pink Star diamond sells for $71.2 million, becoming the world's most expensive gemstone

    04/04/2017 8:26:00 AM PDT · by C19fan · 34 replies
    UK Telegraph ^ | April 4, 2017 | Sarah Royce-Greensill
    The Pink Star diamond has become the world's most expensive gemstone, selling at auction today for $71.2 million (£57.3 million) including buyer's premium. The 59.60-carat pink diamond is the largest Internally Flawless, Fancy Vivid pink diamond ever graded by the GIA, and sold for above its estimate of $60 million (£48.3 million) at Sotheby's in Hong Kong. It breaks the record previously held by the Oppenheimer Blue diamond, which sold for $57.5 million at Christie's in Geneva last May. It has also become the highest price item ever sold at auction in Asia.
  • Diamonds aren't a girl's best friend...

    03/28/2017 7:12:59 PM PDT · by Ol' Dan Tucker · 93 replies
    Dailymail.com ^ | 03-28-2017 | Hannah Parry
    A jewelry restorer has gone undercover at some of New York's most recognizable diamond stores to 'prove' that customers are being ripped off. Diamond expert Jacob Worth, founder of I Want What It's Worth, claims that luxury retailers Tiffany & Co, Cartier, Van Cleef and Harry Winston all use 'identical' diamonds to those found in basic retailers - but with huge markups. 'There really is nothing special about these diamonds. Identical rings can be found at Costco or websites like Blue Nile,' he said. 'At Tiffany you are basically paying a massive markup up for a blue box which you...
  • Diamond’s 2-billion-year growth charts tectonic shift in early Earth’s carbon cycle

    02/24/2017 6:09:37 PM PST · by JimSEA · 8 replies
    Science Daily ^ | 2/23/2017 | S. Timmerman
    A study of tiny mineral 'inclusions' within diamonds from Botswana has shown that diamond crystals can take billions of years to grow. One diamond was found to contain silicate material that formed 2.3 billion years ago in its interior and a 250 million-year-old garnet crystal towards its outer rim, the largest age range ever detected in a single specimen. Analysis of the inclusions also suggests that the way that carbon is exchanged and deposited between the atmosphere, biosphere, oceans and geosphere may have changed significantly over the past 2.5 billion years. 'Although a jeweller would consider diamonds with lots of...
  • Carbon-14 in diamonds: Refuting Talk.Origins

    11/15/2016 7:43:16 AM PST · by fishtank · 5 replies
    Carbon-14 in diamonds: Refuting Talk.Origins Published: 12 November 2016 (GMT+10) C S from United States wrote in: ""I was looking at talk origins’ little archive on Diamonds and C14 in summary. They say Radioisotope evidence presents significant problems for the young earth position. Baumgardner and the RATE team are to be commended for tackling the subject, but their “intrinsic radiocarbon” explanation does not work. The previously published radiocarbon AMS measurements can generally be explained by contamination, mostly due to sample chemistry. The RATE coal samples were probably contaminated in situ. RATE’s processed diamond samples were probably contaminated in the sample...
  • Lockheed Martin files patent for a synthetic diamond 3D printer

    08/19/2016 11:02:03 PM PDT · by 2ndDivisionVet · 28 replies
    3D Printing Industry ^ | August 19, 2016 | Katie Armstrong
    Lockheed Martin, the aerospace company, have filed a patent for a new kind of 3D printer. The patent, filed on April 4 by inventor David G. Findley, describes a new way of 3D printing which would use a pre-ceramic polymer and nanoparticle filler to create synthetic diamond objects of pretty much any shape you can dream up. “[The] method includes depositing alternating layers of a ceramic powder and a pre-ceramic polymer dissolved in a solvent. Each layer of the pre-ceramic polymer is deposited in a shape corresponding to a cross section of an object. The alternating layers of the ceramic...
  • 500 year-old shipwreck loaded with gold found in Namibian desert

    06/07/2016 3:47:41 PM PDT · by Kaslin · 60 replies
    Fox News.com ^ | June 7, 2016 | Walt Bonner
    Diamond miners recently discovered a ship that went down 500 years ago after draining a man-made lagoon on Namibia’s coast. While shipwrecks are often found along Africa’s Skeleton Coast, this one just so happened to be loaded with $13,000,000 worth of gold coins. It also answers a centuries–old mystery and is what some archaeologists are calling one of the most significant shipwrecks ever found. The wreck was first discovered along the coast near Oranjemund by geologists from the mining company De Beers in April 2008. One reason it took centuries to find is because it was underneath the ocean floor....
  • Forget Kohinoor, a Diamond Four Times Bigger Is Now in Dubai

    05/10/2016 12:36:52 AM PDT · by nickcarraway · 16 replies
    Emirates 24/7 ^ | Tuesday, May 10, 2016 | Vicky Kapur
    Uncut diamond weighs in at 404 carats compared with Kohinoor’s 105.602 caratsEven as the governments of India, Pakistan and even Afghanistan have all laid a claim on the world-famous Kohinoor diamond that is set in the front of UK’s Queen Mother’s Crown, it is Dubai that can be called home to one of the world’s rarest and largest rough diamonds even discovered. The astonishing rough diamond in Dubai is characterised not only by its sheer size – an impressive 404 carats – but also uniquely by its colourlessness and flawless clarity. The cut-down Kohinoor, on the other hand, weighs 105.6...
  • The Ministry of Finance will hold a crisis sell diamonds (Russia)

    02/15/2016 3:12:45 PM PST · by dynachrome · 17 replies
    Izvestia ^ | 2-15-16 | Sergey Fish
    The budget deficit, the Ministry of Finance will hold several auctions for the sale of diamonds from Gokhran - the total amount of 167.5 thousand carats.. For comparison: for the whole 2015 the Ministry of Finance sold 8.8 thousand carats.. For the first time will be sold only medium-sized stones - to 10.8 carats. Such diamonds on the market in abundance, experts say, and they are of special interest for the buyers do not represent, but oversupply may adversely affect the market and revenues in the budget hardly exceed $ 15 million (1.2 billion rubles). The Ministry of Finance in...
  • Was toppling Libya all about the money?

    05/19/2015 4:39:45 PM PDT · by Starman417 · 22 replies
    Flopping Aces ^ | 05-19-15 | DrJohn
    In 2011 Barack Obama led from behind a NATO coalition bent on removing Moammar Gaddafi from power in Libya. The removal and death of Gaddafi was, Obama put it, a warning to "iron fisted" rulers everywhere. Syria, Iran and North Korea excepted, of course. Over at Foreign Policy this was hailed as a huge success. "Leading from behind" is an important element of this doctrine. It is no insult to lead but let others feel they too are architects of a plan, to lead without making others feel you are bullying, to lead but do so in a way in...
  • US arrests man 'with uranium for Iran in shoes'

    08/24/2013 10:14:21 AM PDT · by NormsRevenge · 35 replies
    Yahoo! News ^ | 8/24/13 | AFP
    A man was arrested in New York City's international airport with uranium destined for Iran hidden in the soles of his shoes, the US Justice Department said. Patrick Campbell, 33, who was arrested Wednesday as he arrived at the John F Kennedy airport from Paris, is accused of trying to act as an intermediary to sell Iran 1,000 tons of purified uranium, in violation of US law. The Sierra Leone-based Campbell had been under surveillance since May 2012, when he responded to an ad on the site Alibaba.com by someone looking to buy uranium 308, or yellow cake. The buyer...
  • Earth May Have Created Its Own Water Deep Within; And There's Still Enough There To Fill The Pacific

    12/19/2014 7:32:52 PM PST · by BenLurkin · 46 replies
    hngn.com/ ^ | Dec 19, 2014 06:57 PM EST | Rebekah Marcarelli
    A team of researchers revealed evidence of an unknown geochemical pathway used by the Earth to sequester water deep within, releasing small amounts through plate tectonics in a process that feeds our oceans "from within," Ohio State University reported.
  • World's largest water reservoir found deep in earth

    06/13/2014 3:41:21 AM PDT · by rjbemsha · 32 replies
    Indo Asian News Service ^ | 13 June 2014 | Anon
    In what could quench the thirst of billions of people in the future, researchers have discovered our planet's largest water reservoir 640 km beneath our feet - bound up in rock deep in the earth's mantle. This water is not in a form familiar to us - it is not liquid, ice or vapour. This fourth form is water trapped inside the molecular structure of the minerals in the mantle rock. Scientists have been looking for this missing deep water for decades," explained geophysicist Steve Jacobsen from Northwestern University.