Other crater-related diamonds are larger. In the 35-mile-wide Popigari crater in Siberia, the result of a huge impact 35 million years ago, Russian researchers unearthed polycrystalline diamond ...

TASS/. Scientists from Novosibirsk and France have received new data on formation of the Siberian Craton, where Russia has the biggest diamond deposit. Results of studies in history of the ...