The History Channel's Modern Marvels TV show is playing Diamond Mines today. Try to catch it... but if you do miss it, you can purchase it on video.
Excerpt:
Diamond Mines
Half a mile below the earth's surface, men mine for rough diamonds--a pure carbon substance. Brilliant when cut and polished, they are marketed as the most precious gem in the world. From the earliest mines of the 4th century BC to today's technological wonders in South Africa, we explore the history and technology of the diamond mine.
Posted by GilbertZ at 01:14 PM
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