98-million-year-old amber discovered in Myanmar — with a new species inside. See it
The millipede family Siphonorhinidae, of which the new species is an ancient ancestor, still lives today and includes four ...
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Rubies and Sapphires from Winza, Central Tanzania
Since late 2007, rubies and sapphires have been mined by hand methods from both eluvial and primary deposits at Winza in central Tanzania. The gem corundum is related to “dikes” of amphibolitic rocks ...
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How (and Why) to Downgrade or Upgrade the Chase Sapphire Cards
If you have the Chase Freedom Unlimited but are desperate for the Sapphire Preferred and fall under this rule, you could talk to a Chase agent to see if you're eligible to upgrade. Keep in mind you'll ...
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Rubies and Fancy Sapphires from Vietnam
Robert E. Kane, Shane F. McClure, Robert C. Kammerling, Nguyen Dang Khoa, Carlo Mora, Saverio Repetto, and Nguyen Duc Khai, John I. Koivula ...