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Pastimes : The Boxing Ring Revived -- Ignore unavailable to you. Want to Upgrade?


To: Tom Clarke who wrote (6674)7/1/2003 2:44:41 PM
From: average joe  Respond to of 7720
 
A lot of earth minerals were actually seeded here by asteroids. A meteorite impacted into a graphite lens in Siberia that created billions of micro-diamonds that a lab in Simferopol was rumored to be growing into 5 carat gems, that is until the lab mysteriously blew up. The Russians started with the idea that when the earth was in a more plastic state impacts seeded the upper mantle with micro-diamonds and they simply replicated that same pressure regime at surface to grow macro-stones.

pbs.org