The Smithsonian Gem and Mineral Collection|
November 24, 2013 | Gemological Institute of America
The Gemological Institute of America has an article with five videos and a photo gallery that gives you a “behind the scenes” look at the Smithsonian Gem and Mineral Collection.
Fancy Vivid Pink Diamond Sells for $83 Million|
November 19, 2013 | Bloomberg
A fancy vivid pink diamond weighing 59.60 carats was sold last week in Geneva for $83 million. That is the highest price ever paid for any gemstone at auction.
Related: How do diamonds form?
Most Viewed News in October|
November 1, 2013 | Geology.com
Egypt Fears a Dam on the Nile in Ethiopia
235 Carat Diamond Found in Siberia
Status of Recent Geoscience Graduates
Nice Yellow Diamond Found in Arkansas
What Caused the Sudden Explosion of Animal Life 520MYA?
Walking Away from One of the World’s Largest Gold Discoveries?
Shell Walks Away from Oil Shale
Granitizers vs Magmatists
Nice Yellow Diamond Found in Arkansas|
October 22, 2013 | Yahoo News
A 14-year-old girl from Oklahoma City has unearthed a 3.85-carat diamond at Arkansas’ Crater of Diamonds State Park.
Related: United States Gemstones
Converting Methane into Diamonds?|
October 15, 2013 | National Geographic
Intense temperature, pressure and lightning storms on Saturn and Jupiter may be able to convert atmospheric methane into diamonds – producing a rain of diamonds on those planets.
235 Carat Diamond Found in Siberia|
October 10, 2013 | RIA Novosti
Alrosa, the state-controlled diamond mining company of Russia, reports that they have found a 235 carat gem-quality diamond at their Yakutia mine in Siberia. The stone is valued at $1.5 to $2 million US.
Related: Popigai: The World’s Largest Diamond Deposit?
Fluorescence in Diamond|
October 2, 2013 | Gemological Institute of America
The Gemological Institute of America has a new article titled “Fluorescence Produced by Optical Defects in Diamond“.
Diamonds from Brazil?|
September 25, 2013 | Gemological Institute of America
Few people think of Brazil as a source of diamonds, but in the 1700s the country was the world’s leading supplier of gem-quality diamonds. Production continues there today with about 25,000 carats produced per year.
Related: The only producing diamond mine in the USA.
Popular for August 2013|
September 3, 2013 | Geology.com
40 Maps that Explain the World
A Spanish Fort in the Appalachians in 1567?
12-Year-Old Finds a 5-Carat Diamond in Arkansas
Sinkhole in Western Kansas
Rare Eruption of Steamboat Geyser
Origin of the Antarctica Ice Sheet?
Frozen Landslides in Alaska
Solar Magnetic Field is about to Flip?
Flash Flooding Near Page, Arizona
August 18, 2013 | Geology.com
Peridotite is a host rock of chromite, a source rock of diamonds, a potential sink for atmospheric carbon dioxide and the rock that makes up much of Earth’s mantle. Did you realize it was so important?
Related: Misconception: Diamonds Don’t Form From Coal
12-Year-Old Finds a 5-Carat Diamond in Arkansas|
August 15, 2013 | New York Daily News
A 12-year-old from North Carolina walked into the Crater of Diamonds prospecting area and in about ten minutes found a five-carat diamond.
Related: Crater of Diamonds
Popular Stories for July 15 to July 31|
August 3, 2013 | Geology.com
Sinkhole Photos – Wow!
Debris Flow in Southern Utah
The Strangest Volcanic Landscape
Thousands of Volcanoes in Arizona?
An Embryonic Subduction Zone in the Atlantic?
The Geologist Who Discovered Canadian Diamonds
Top Diamond Producers
The Geologist Who Discovered Canadian Diamonds|
July 28, 2013 | Wired Magazine
An article in Wired Magazine (2008) has the interesting story about Chuck Fipke and his role in discovering the Lac de Gras diamond deposit in Northwest Territories, Canada.
Related: Diamond Mines in Canada
Top Diamond Producers|
July 18, 2013 | Geology.com
Botswana, Russia and Canada retained their positions as the top three gem quality diamond producers for 2012 according to production estimates from the United States Geological Survey.
Related: Diamond Mines in Canada
A New Diamond Production Leader?|
June 27, 2013 | Botswana Diamond Manufacturers Association
Russia is currently the world’s second largest producer of gem-quality diamonds, after Botswana. Alrosa, Russia’s largest diamond producer, has plans to surpass the production of DeBeers, the world’s leading diamond-producing company, by 2018. Their success may help Russia become the world’s leading diamond producing nation.
“A seven-hour flight from Moscow to the small town of Mirny, followed by another two-hour helicopter ride brought me to one of the most remote regions on earth, where many of the world’s diamonds are mined, Alrosa’s Nyurba mine in the Republic of Yakutia.” Quoted from the Botswana Diamond Manufacturers Association press release.
United States Gemstones|
June 11, 2013 | Geology.com
A diversity of gemstones are produced in the United States. However, the $11 million per year in domestic production is tiny compared to the $23.5 billion that are imported.
Fee Mining Sites
Geology.com and RockTumbler.com are
both GeoShops.com websites.
May 24, 2013 | RockTumbler.com
Lots of people enjoy going to fee mining sites where you can prospect inactive surface mines, mine tailings, soil, sediments or outcrops and keep any rocks, gems, minerals or fossils that you find. Examples include: Herkimer Diamond Mines where you can search for doubly-terminated quartz crystals, and Crater of Diamonds where you might be lucky enough to find a real diamond.
Colorless Diamond Price Record|
May 21, 2013 | ABCNews
ABC News Australia has an article about the 101 carat colorless diamond that set a new price record by selling for $23.8 million.
Diamond Dust over Saskatoon|
May 3, 2013 |
The Earth Science Picture of the Day for April 29th was “diamond dust” glowing from reflected natural light and city lights outside of Saskatoon, Saskatchewan, Canada.
What is a Maar?|
April 26, 2013 | Geology.com
Maars are the second most common volcanic feature on Earth.
The largest maars are found on the Seward Peninsula of Alaska. Do you know what they are and how they form?