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 ...

These are the key developments on day 1,122 of Russia’s war on Ukraine. Today on The Stream: We examine why so many people of Gen Z age are choosing farm life over city dwellings.