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The Point Two Gram
Curating diamond-related research
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Janina Czas
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'Diamonds from the Deep' - column published in Gems and Gemology
Explaining the research behind natural diamonds and their deep Earth origin
Diamonds Are Not Forever! Diamond Dissolution
Trigons on a diamond from the Fort a la Corne deposit in Saskatchewan, Canada. Image by Janina Czas / University of Alberta. Trigons are...
Kimberlites: Earth’s Diamond Delivery System
Diamonds are the most amazing of gems. Just as amazing, however, is how natural diamonds reach Earth’s surface. Diamonds are formed 150...
How old are diamonds? Are they forever?
This is a sulphide mineral inclusion trapped in a diamond from Ellendale (Australia). The sulphides were broken out of the diamonds,...
How do diamonds form in the deep Earth?
Diamond geologists now have evidence for a wide range of diamond source fluid compositions, including carbonate-bearing fluids,...
Diamonds help solve the enigma of Earth's deep water
Ringwoodite is the high-pressure form of the mineral olivine (Mg2SiO4) that occurs between 520 and 660 km below the surface of the earth...
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