Tag: diamonds
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Rare half-pink rough diamond with ‘astounding’ weight of 37.4 carats discovered in Botswana
Live Science has a story about the discovery of a very large pink diamond. The diamond weighs 37.4 carats. It was discovered in Botwana and likely formed in two stages as it has two colors… pink and colorless. The pink half probably formed first, but from what scientists know about colorful diamonds, there’s a good…
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Deep-Earth Diamonds Reveal ‘Almost Impossible’ Chemistry
Scientific American has a story about the formation of diamonds. Inclusions are imperfections in gem stones. They are tiny bits of the surrounding rock when the gem or crystal forms. Inclusions in two diamond samples from South Africa are shedding light on how diamonds form deep in Earth’s mantle. The two new diamond samples each…
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Largest Diamond Since 1905 Unearthed by Miners in Botswana
Smithsonian Magazine has an article about the discovery of a very large diamond. A 2,492 carat diamond is the largest found since 1905. It was discovered this week in the Karowe mine, about 300 miles north of Botswana’s capital city of Gaborone. That mine has produced four other large diamonds in the last decade. This…
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Throwback Thursday #208: Looking Back At ESCONI For April 2024
This is Throwback Thursday #208. In these, we look back into the past at ESCONI specifically and Earth Science in general. If you have any contributions, (science, pictures, stories, etc …), please send them to esconi.info@gmail.com. Thanks! 25 Years Ago – April 1999 50 Years Ago – April 1974 70 Years Ago – April 1954…
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Throwback Thursday #207: Diamonds and Gold Poem
This is Throwback Thursday #207. In these, we look back into the past at ESCONI specifically and Earth Science in general. If you have any contributions, (science, pictures, stories, etc …), please send them to esconi.info@gmail.com. Thanks! For this week, we have poem entitled “Diamonds and Gold” from the March 1971 newsletter. The poem comes…
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Throwback Thursday #184: Crater of Diamonds State Park 1972
This is Throwback Thursday #184. In these, we look back into the past at ESCONI specifically and Earth Science in general. If you have any contributions, (science, pictures, stories, etc …), please send them to esconi.info@gmail.com. Thanks! Located near Murfreesboro, Arkansas, Crater of Diamonds is a State Park of Arkansas. It’s the only place in…
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Earth’s biggest cache of pink diamonds formed in the breakup of the 1st supercontinent ‘Nuna’
Live Science has a post about Australian diamonds. Western Australia is the source of 90% of the worlds pink diamonds. They are found in the Argyle formation, which formed about 1.3 billion (yes, billion) years ago. A paper in the journal Nature details the origin of these diamonds. While other diamonds derive their color from…
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Fountains of diamonds erupt from Earth’s center as supercontinents break up
A rough diamond in a mine (Image credit: Getty Images) LiveScience has a story about the formation of diamonds. Diamonds form deep in the Earth’s crust at a depth of about 93 miles. They are brought to the surface by fast moving eruptions called kimberlites. Kimberlites travel at between 11 and 83 mph (18 to 133…
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ESCONI January 2020 General Meeting Michelle Wenz – Super Deep Diamonds from Juina, Brazil on January 10, 2020
Electron microscope images of diamonds from the Juína area of Brazil.Credit…Suzette Timmerman The speaker at our January 10, 2020 meeting will be Michelle Wenz, a PhD student from Northwestern University. She is working on an suite of superdeep diamonds from Juina, Brazil, many of which appear to have come from the 400-700 km depth range.…
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CNN: A vacationing teacher finds a 2.12-carat diamond at an Arkansas state park
CNN Travel has a story about a teacher that finds a diamond at the Crater of Diamonds State Park in Murfreesboro, Arkansas. There’s a short video that does a great job telling the story. Josh Lanik, 36, was vacationing with his family when he discovered a brandy-colored gem at Crater of Diamonds State Park in…
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Mineral Monday #1: Here’s How Much It Costs to Buy a Diamond the Size of a Tennis Ball
Fortune has a story about a diamond that weighs 1,109 carats. The stone, which was sold recently by the Canadian mining company Lucara Diamond, was discovered in 2015 at Lucara’s Karowe mine in Botswana. This is the largest diamond found in the last century. The record is held by the Cullinan Diamond, which was found…
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110 Carat Diamond at London Natural History Museum
From the Guardian: At 110 carats, the price of the Cora Sun-Drop is as closely guarded as the diamond itself. The stone, which took six months to cut and is the only pear-shaped yellow diamond in the world, goes on display on Friday at London’s Natural History Museum
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Dr. Grande and Anna Huntley of Field Museum discuss The Nature of Diamonds and Grainger Hall of Gems. Chicago Tonight: 7 pm Mon. Chnl 11
Dr. Grande and Anna Huntley of Field Museum discuss The Nature of Diamonds and Grainger Hall of Gems. Chicago Tonight: 7 pm Mon. Chnl 11
