Diamonds. You see them in jewelry stores, celebrities flaunting them, but where do they come from? Turns out not from coal! Check out this episode to find out what conditions are needed for diamonds to form.
Hosted by: Michael Aranda
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Sources:
http://www.scientificamerican.com/article/how-can-graphite-and-diam/
http://www.gia.edu/gems-gemology/WN13-advances-diamond-geology-shirey
http://www.smithsonianmag.com/science-nature/diamonds-unearthed-141629226/?no-ist
https://deepcarbon.net/feature/new-analyses-refine-estimates-deep-carbon-cycle#.V-r8WZMrKqD
http://geology.com/articles/diamonds-from-coal/
http://www.diamondnexus.com/product-education-pure-carbon-created-diamonds.html
http://www.nature.com/news/2007/070822/full/news070820-7.html
http://phys.org/news/2013-09-diamonds-trees-millions-years.html
Images:
Kimberlites: https://commons.wikimedia.org/wiki/File:Kimberlite_picture.jpg
Coal: https://commons.wikimedia.org/wiki/File:Bituminous_Coal.JPG
Tetrahedrons: https://en.wikipedia.org/wiki/Allotropes_of_carbon
